diff --git a/CONFIG/ARCHS/CreateTar.sh b/CONFIG/ARCHS/CreateTar.sh
index 516eede..decb632 100644
--- a/CONFIG/ARCHS/CreateTar.sh
+++ b/CONFIG/ARCHS/CreateTar.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Creates the appropriate .tgz from all subdirs
-for arch in `ls -F | fgrep "/" | sed -e 's/\///'`
+for arch in `ls -F | grep -F "/" | sed -e 's/\///'`
 do
 tar cvf $arch.tar $arch/*
 bzip2 --best $arch.tar
diff --git a/CONFIG/src/Makefile b/CONFIG/src/Makefile
index 84a9144..58b4f25 100644
--- a/CONFIG/src/Makefile
+++ b/CONFIG/src/Makefile
@@ -352,7 +352,7 @@ IRunC2C :
 IRunFlib :
 	@ - rm config0.out
 	@ $(F77) $(F77FLAGS) -v -o xtst $(SRCdir)/backend/comptestF.f 2>&1 | \
-           fgrep -e '-L' > config0.out
+           grep -F -e '-L' > config0.out
 	@ rm -f xtst
 	@ - cat config0.out
 IRunTestCFLink :
diff --git a/CONFIG/src/atlconf_misc.c b/CONFIG/src/atlconf_misc.c
index a1a1090..db46981 100644
--- a/CONFIG/src/atlconf_misc.c
+++ b/CONFIG/src/atlconf_misc.c
@@ -700,7 +700,7 @@ char *NameWithoutPath(char *file)
 
 int GetIntVers(char *str, int *nskip)
 {
-   char ln[64];
+   char ln[128];
    int i, j;
 
    *nskip = 0;
@@ -870,10 +870,10 @@ int CompIsMinGW(char *comp)
    {
       char *cmnd, *res;
       int i;
-      i = strlen(comp) + 24;
+      i = strlen(comp) + 26;
       cmnd = malloc(sizeof(char)*i);
       assert(cmnd);
-      sprintf(cmnd, "%s -v 2>&1 | fgrep mingw", comp);
+      sprintf(cmnd, "%s -v 2>&1 | grep -F mingw", comp);
       res = atlsys_1L(NULL, cmnd, 0, 0);
       free(cmnd);
       if (res)
@@ -899,10 +899,10 @@ int CompIsAppleGcc(char *comp)
    if (CompIsGcc(comp))
    {
       int i;
-      i = strlen(comp) + 24;
+      i = strlen(comp) + 26;
       cmnd = malloc(sizeof(char)*i);
       assert(cmnd);
-      sprintf(cmnd, "%s -v 2>&1 | fgrep Apple", comp);
+      sprintf(cmnd, "%s -v 2>&1 | grep -F Apple", comp);
       res = atlsys_1L(NULL, cmnd, 0, 0);
       free(cmnd);
       if (res)
diff --git a/CONFIG/src/backend/archinfo_aix.c b/CONFIG/src/backend/archinfo_aix.c
index 06ac8c2..e7a676b 100644
--- a/CONFIG/src/backend/archinfo_aix.c
+++ b/CONFIG/src/backend/archinfo_aix.c
@@ -63,7 +63,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
    uint part;
    char *res;
    *IMPL = *ARCH = *VAR = *REV = part = -1;
-   res = atlsys_1L(NULL, "fgrep 'CPU part' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU part' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -74,7 +74,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             part = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU variant' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU variant' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -85,7 +85,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             *VAR = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU implement' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU implement' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -97,7 +97,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
       free(res);
    }
 
-   res = atlsys_1L(NULL, "fgrep 'CPU architect' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU architect' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -108,7 +108,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             *ARCH = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU revision' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU revision' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -132,7 +132,7 @@ enum MACHTYPE ProbeArch()
    switch(fam)
    {
    case AFPPC: /* don't know */
-      res = atlsys_1L(NULL, "/usr/sbin/prtconf | fgrep 'Processor Type'", 0, 0);
+      res = atlsys_1L(NULL, "/usr/sbin/prtconf | grep -F 'Processor Type'", 0, 0);
       if (res)
       {
          if (strstr(res, "PowerPC_POWER5"))
@@ -158,7 +158,7 @@ int ProbeNCPU()
    int ncpu = 0;
    char *res;
 
-   res = atlsys_1L(NULL, "/usr/sbin/prtconf | fgrep 'Number Of Processors'",
+   res = atlsys_1L(NULL, "/usr/sbin/prtconf | grep -F 'Number Of Processors'",
                    0, 0);
    if (res)
    {
@@ -187,7 +187,7 @@ int ProbePointerBits(int *sure)
       return(64);
    }
 
-   res = atlsys_1L(NULL, "/usr/sbin/prtconf | fgrep 'Kernel Type'", 0, 0);
+   res = atlsys_1L(NULL, "/usr/sbin/prtconf | grep -F 'Kernel Type'", 0, 0);
    if (res)
    {
       if (GetLastInt(res) == 64)
@@ -230,7 +230,7 @@ int ProbeMhz()
 {
    int mhz=0;
    char *res;
-   res = atlsys_1L(NULL, "/usr/sbin/prtconf | fgrep 'Processor Clock Speed'",
+   res = atlsys_1L(NULL, "/usr/sbin/prtconf | grep -F 'Processor Clock Speed'",
                    0, 0);
    if (res)
    {
diff --git a/CONFIG/src/backend/archinfo_freebsd.c b/CONFIG/src/backend/archinfo_freebsd.c
index f65c459..f076f91 100644
--- a/CONFIG/src/backend/archinfo_freebsd.c
+++ b/CONFIG/src/backend/archinfo_freebsd.c
@@ -63,7 +63,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
    uint part;
    char *res;
    *IMPL = *ARCH = *VAR = *REV = part = -1;
-   res = atlsys_1L(NULL, "fgrep 'CPU part' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU part' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -74,7 +74,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             part = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU variant' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU variant' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -85,7 +85,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             *VAR = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU implement' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU implement' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -97,7 +97,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
       free(res);
    }
 
-   res = atlsys_1L(NULL, "fgrep 'CPU architect' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU architect' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -108,7 +108,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             *ARCH = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU revision' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU revision' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
diff --git a/CONFIG/src/backend/archinfo_irix.c b/CONFIG/src/backend/archinfo_irix.c
index 6f74986..a8f4581 100644
--- a/CONFIG/src/backend/archinfo_irix.c
+++ b/CONFIG/src/backend/archinfo_irix.c
@@ -63,7 +63,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
    uint part;
    char *res;
    *IMPL = *ARCH = *VAR = *REV = part = -1;
-   res = atlsys_1L(NULL, "fgrep 'CPU part' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU part' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -74,7 +74,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             part = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU variant' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU variant' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -85,7 +85,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             *VAR = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU implement' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU implement' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -97,7 +97,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
       free(res);
    }
 
-   res = atlsys_1L(NULL, "fgrep 'CPU architect' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU architect' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -108,7 +108,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             *ARCH = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU revision' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU revision' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -132,7 +132,7 @@ enum MACHTYPE ProbeArch()
    switch(fam)
    {
    case AFIA64:
-      res = atlsys_1L(NULL, "hinv -c processor | fgrep 'Itanium'", 0, 0);
+      res = atlsys_1L(NULL, "hinv -c processor | grep -F 'Itanium'", 0, 0);
       if (res)
       {
          if (res[0] != '\0')
@@ -144,7 +144,7 @@ enum MACHTYPE ProbeArch()
       }
       break;
    case AFMIPS:
-      res = atlsys_1L(NULL, "hinv -c processor | fgrep 'CPU'", 0, 0);
+      res = atlsys_1L(NULL, "hinv -c processor | grep -F 'CPU'", 0, 0);
       if (!ierr && res[0] != '\0')
       {
          if (res[0] != '\0')
@@ -165,7 +165,7 @@ int ProbeNCPU()
    char *res;
 
    res = atlsys_1L(NULL,
-                   "hinv -c processor | fgrep Processor | fgrep -v 'CPU:'",
+                   "hinv -c processor | grep -F Processor | grep -F -v 'CPU:'",
                    0, 0);
    if (res)
    {
@@ -226,7 +226,7 @@ int ProbeMhz()
 {
    int mhz=0;
    char *res;
-   res = atlsys_1L(NULL, "hinv -c processor | fgrep MHz", 0, 0);
+   res = atlsys_1L(NULL, "hinv -c processor | grep -F MHz", 0, 0);
    if (res)
    {  /* Itanium's use MHz */
       mhz = GetIntBeforeWord("MHz", res);
@@ -235,7 +235,7 @@ int ProbeMhz()
    }
    if (!mhz)
    {
-      res = atlsys_1L(NULL, "hinv -c processor | fgrep MHZ", 0, 0);
+      res = atlsys_1L(NULL, "hinv -c processor | grep -F MHZ", 0, 0);
       if (res)
       {   /* MIPS uses MHZ */
          mhz = GetIntBeforeWord("MHZ", res);
@@ -245,7 +245,7 @@ int ProbeMhz()
    }
    if (!mhz)
    {
-      res = atlsys_1L(NULL, "hinv -c processor | fgrep GHz", 0, 0);
+      res = atlsys_1L(NULL, "hinv -c processor | grep -F GHz", 0, 0);
       if (res)
       {  /* Don't think MIPS will ever get here, nobody pres uses GHz */
          mhz = GetIntBeforeWord("GHz", res);
diff --git a/CONFIG/src/backend/archinfo_linux.c b/CONFIG/src/backend/archinfo_linux.c
index fa95649..a70b282 100644
--- a/CONFIG/src/backend/archinfo_linux.c
+++ b/CONFIG/src/backend/archinfo_linux.c
@@ -63,7 +63,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
    uint part;
    char *res;
    *IMPL = *ARCH = *VAR = *REV = part = -1;
-   res = atlsys_1L(NULL, "fgrep 'CPU part' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU part' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -74,7 +74,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             part = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU variant' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU variant' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -85,7 +85,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             *VAR = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU implement' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU implement' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -97,7 +97,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
       free(res);
    }
 
-   res = atlsys_1L(NULL, "fgrep 'CPU architect' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU architect' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -108,7 +108,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             *ARCH = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU revision' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU revision' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -132,7 +132,7 @@ enum MACHTYPE ProbeArch()
    switch(fam)
    {
    case AFPPC:
-      res = atlsys_1L(NULL, "cat /proc/cpuinfo | fgrep cpu", 0, 0);
+      res = atlsys_1L(NULL, "cat /proc/cpuinfo | grep -F cpu", 0, 0);
       if (res)
       {
 #if 0
@@ -158,7 +158,7 @@ enum MACHTYPE ProbeArch()
       }
       break;
    case AFMIPS:
-      res = atlsys_1L(NULL, "fgrep 'cpu model' /proc/cpuinfo", 0, 0);
+      res = atlsys_1L(NULL, "grep -F 'cpu model' /proc/cpuinfo", 0, 0);
       if (res)
       {
          if (res[0] != '\0')
@@ -177,15 +177,15 @@ enum MACHTYPE ProbeArch()
       }
       break;
    case AFARM:
-      res = atlsys_1L(NULL, "fgrep 'Processor' /proc/cpuinfo", 0, 0);
+      res = atlsys_1L(NULL, "grep -F 'Processor' /proc/cpuinfo", 0, 0);
       if (!res)
-         res = atlsys_1L(NULL, "fgrep cpu /proc/cpuinfo", 0, 0);
+         res = atlsys_1L(NULL, "grep -F cpu /proc/cpuinfo", 0, 0);
       if (res)
       {
          if (strstr(res, "ARMv7") || strstr(res,"v7l"))
          {
             free(res);
-            res = atlsys_1L(NULL, "fgrep 'CPU part' /proc/cpuinfo", 0, 0);
+            res = atlsys_1L(NULL, "grep -F 'CPU part' /proc/cpuinfo", 0, 0);
             if (res)
             {
                char *sp;
@@ -219,14 +219,14 @@ enum MACHTYPE ProbeArch()
          else if (strstr(res, "AArch64") || strstr(res, "aarch64"))
          {
             free(res);
-            res = atlsys_1L(NULL, "fgrep 'Hardware' /proc/cpuinfo", 0, 0);
+            res = atlsys_1L(NULL, "grep -F 'Hardware' /proc/cpuinfo", 0, 0);
             if (res && strstr(res, "X-Gene "))
                mach = ARM64xg;
             else
             {
                if(res)
                   free(res);
-               res = atlsys_1L(NULL, "fgrep 'CPU part' /proc/cpuinfo", 0, 0);
+               res = atlsys_1L(NULL, "grep -F 'CPU part' /proc/cpuinfo", 0, 0);
                if (res)
                {
                   char *sp;
@@ -283,14 +283,14 @@ enum MACHTYPE ProbeArch()
       }
       break;
    case AFIA64:
-      res = atlsys_1L(NULL, "fgrep 'Itanium' /proc/cpuinfo", 0, 0);
+      res = atlsys_1L(NULL, "grep -F 'Itanium' /proc/cpuinfo", 0, 0);
       if (res && res[0] == '\0')
       {
          free(res);
          res = NULL;
       }
       if (!res)
-         res = atlsys_1L(NULL, "fgrep \"model name\" /proc/cpuinfo", 0, 0);
+         res = atlsys_1L(NULL, "grep -F \"model name\" /proc/cpuinfo", 0, 0);
       if (res)
       {
          if (res[0] != '\0')
@@ -303,14 +303,14 @@ enum MACHTYPE ProbeArch()
       }
       break;
    case AFX86:
-      res = atlsys_1L(NULL, "fgrep 'model name' /proc/cpuinfo", 0, 0);
+      res = atlsys_1L(NULL, "grep -F 'model name' /proc/cpuinfo", 0, 0);
       if (res && res[0] == '\0')
       {
          free(res);
          res = NULL;
       }
       if (!res)
-         res = atlsys_1L(NULL, "fgrep model /proc/cpuinfo", 0, 0);
+         res = atlsys_1L(NULL, "grep -F model /proc/cpuinfo", 0, 0);
       if (res && res[0] == '\0')
       {
          free(res);
@@ -328,7 +328,7 @@ enum MACHTYPE ProbeArch()
             {
                char *rs2;
                rs2 = atlsys_1L(NULL,
-                      "fgrep 'model' /proc/cpuinfo | fgrep -v 'name'", 0, 0);
+                      "grep -F 'model' /proc/cpuinfo | grep -F -v 'name'", 0, 0);
                if (rs2)
                {
                   i = GetLastInt(res);
@@ -388,7 +388,7 @@ enum MACHTYPE ProbeArch()
  *    Add these back if we get machine access and can test
  */
    case AFSPARC:  /* don't know here anymore */
-      res = atlsys_1L(NULL, "fgrep cpu /proc/cpuinfo", 0, 0);
+      res = atlsys_1L(NULL, "grep -F cpu /proc/cpuinfo", 0, 0);
       if (res)
       {
          if (strstr(res, "UltraSparc T2")) mach = SunUST2;
@@ -404,9 +404,9 @@ enum MACHTYPE ProbeArch()
    case AFALPHA:
       #if 0
       res[0] = '\0';
-      ierr = CmndOneLine(NULL, "fgrep 'model name' /proc/cpuinfo", res);
+      ierr = CmndOneLine(NULL, "grep -F 'model name' /proc/cpuinfo", res);
       if (ierr || res[0] == '\0')
-         ierr = CmndOneLine(NULL, "fgrep model /proc/cpuinfo", res);
+         ierr = CmndOneLine(NULL, "grep -F model /proc/cpuinfo", res);
       if (!ierr && res[0] != '\0')
       {
          if (strstr(res, "EV5")) mach = Dec21164;
@@ -416,7 +416,7 @@ enum MACHTYPE ProbeArch()
       #endif
       break;
    case AFS390:
-      res = atlsys_1L(NULL, "cat /proc/cpuinfo | fgrep \"processor \"", 0, 0);
+      res = atlsys_1L(NULL, "cat /proc/cpuinfo | grep -F \"processor \"", 0, 0);
       if (res)
       {
          if (strstr(res, "2094") || strstr(res, "2096")) mach = IbmZ9;
@@ -430,7 +430,7 @@ enum MACHTYPE ProbeArch()
       break;
    default:
 #if 0
-      if (!CmndOneLine(NULL, "fgrep 'cpu family' /proc/cpuinfo", res))
+      if (!CmndOneLine(NULL, "grep -F 'cpu family' /proc/cpuinfo", res))
          if (strstr(res, "PA-RISC 2.0")) mach = HPPA20;
 #else
      ;
@@ -446,7 +446,7 @@ int ProbeNCPU()
    #if 0
    if (mach == Dec21264 || mach == Dec21164 || mach == Dec21064)
    {
-      if ( !CmndOneLine(NULL, "fgrep 'cpus detected' /proc/cpuinfo", res) )
+      if ( !CmndOneLine(NULL, "grep -F 'cpus detected' /proc/cpuinfo", res) )
          ncpu = GetLastInt(res);
    }
    #endif
@@ -524,7 +524,7 @@ int ProbeMhz()
 {
    int mhz=0;
    char *res;
-   res = atlsys_1L(NULL, "fgrep 'cpu MHz' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'cpu MHz' /proc/cpuinfo", 0, 0);
    if (res)
    {
       mhz = GetFirstDouble(res) + 0.5;
@@ -532,7 +532,7 @@ int ProbeMhz()
    }
    if (!mhz)
    {
-      res = atlsys_1L(NULL, "cat /proc/cpuinfo | fgrep clock | fgrep MHz",0,0);
+      res = atlsys_1L(NULL, "cat /proc/cpuinfo | grep -F clock | grep -F MHz",0,0);
       if (res)
       {
          mhz = GetLastLongWithRound(res);
@@ -544,7 +544,7 @@ int ProbeMhz()
  */
    if (!mhz)
    {
-      res = atlsys_1L(NULL, "fgrep 'ClkTck' /proc/cpuinfo", 0, 0);
+      res = atlsys_1L(NULL, "grep -F 'ClkTck' /proc/cpuinfo", 0, 0);
       if (res)
       {
          mhz = GetLastHex(res) / 1000000;
@@ -605,7 +605,7 @@ int ProbeMhz()
  */
    if (!mhz)
    {
-      res = atlsys_1L(NULL, "cat /proc/cpuinfo | fgrep bogomips",0,0);
+      res = atlsys_1L(NULL, "cat /proc/cpuinfo | grep -F bogomips",0,0);
       if (res)
       {
          double result = GetFirstDouble(res);
diff --git a/CONFIG/src/backend/archinfo_sunos.c b/CONFIG/src/backend/archinfo_sunos.c
index 830ddf9..2990324 100644
--- a/CONFIG/src/backend/archinfo_sunos.c
+++ b/CONFIG/src/backend/archinfo_sunos.c
@@ -63,7 +63,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
    uint part;
    char *res;
    *IMPL = *ARCH = *VAR = *REV = part = -1;
-   res = atlsys_1L(NULL, "fgrep 'CPU part' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU part' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -74,7 +74,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             part = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU variant' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU variant' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -85,7 +85,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             *VAR = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU implement' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU implement' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -97,7 +97,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
       free(res);
    }
 
-   res = atlsys_1L(NULL, "fgrep 'CPU architect' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU architect' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -108,7 +108,7 @@ uint getArmInfo(uint *IMPL, uint *ARCH, uint *VAR, uint *REV)
             *ARCH = i;
       free(res);
    }
-   res = atlsys_1L(NULL, "fgrep 'CPU revision' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'CPU revision' /proc/cpuinfo", 0, 0);
    if (res)
    {
       char *sp;
@@ -132,7 +132,7 @@ enum MACHTYPE ProbeArch()
    switch(fam)
    {
    case AFSPARC:
-      res = atlsys_1L(NULL, "/usr/sbin/psrinfo -pv | fgrep UltraSPARC", 0, 0);
+      res = atlsys_1L(NULL, "/usr/sbin/psrinfo -pv | grep -F UltraSPARC", 0, 0);
       if (res)
       {
          if (strstr(res, "UltraSPARC-IV"))
@@ -157,18 +157,18 @@ enum MACHTYPE ProbeArch()
  *    I assume most USIV will have the newer SunOS/psrinfo above, so declare
  *    anything using this to be USIII, to minimize user confusion.
  */
-      else if (res=atlsys_1L(NULL, "/usr/sbin/psrinfo -v | fgrep sparcv9", 0,0))
+      else if (res=atlsys_1L(NULL, "/usr/sbin/psrinfo -v | grep -F sparcv9", 0,0))
       {
          free(res);
          mach = SunUSX;
-         res = atlsys_1L(NULL,  "/usr/sbin/psrinfo -v | fgrep MHz", 0, 0);
+         res = atlsys_1L(NULL,  "/usr/sbin/psrinfo -v | grep -F MHz", 0, 0);
          if (res)
          {
             i = GetIntBeforeWord("MHz", res);
             if (i != BADINT && i > 700) mach = SunUSIII;
             free(res);
          }
-         else if (res=atlsys_1L(NULL, "/usr/sbin/psrinfo -v | fgrep GHz", 0, 0))
+         else if (res=atlsys_1L(NULL, "/usr/sbin/psrinfo -v | grep -F GHz", 0, 0))
          {
             mach = SunUSIII;
             free(res);
@@ -183,13 +183,13 @@ int ProbeNCPU()
    int ncpu = 0;
    char *res;
 
-   res = atlsys_1L(NULL, "uname -X | fgrep NumCPU", 0, 0);
+   res = atlsys_1L(NULL, "uname -X | grep -F NumCPU", 0, 0);
    if (res)
    {
       ncpu = GetFirstInt(res);
       free(res);
    }
-   else if ((res=atlsys_1L(NULL, "/bin/uname -X | fgrep NumCPU", 0, 0)))
+   else if ((res=atlsys_1L(NULL, "/bin/uname -X | grep -F NumCPU", 0, 0)))
    {
       ncpu = GetFirstInt(res);
       free(res);
@@ -248,7 +248,7 @@ int ProbeMhz()
 {
    int mhz=0;
    char *res;
-   res = atlsys_1L(NULL, "/usr/sbin/psrinfo -v | fgrep MHz", 0, 0);
+   res = atlsys_1L(NULL, "/usr/sbin/psrinfo -v | grep -F MHz", 0, 0);
    if (res)
    {
       mhz = GetIntBeforeWord("MHz", res);
@@ -257,7 +257,7 @@ int ProbeMhz()
    }
    if (!mhz)
    {
-      res = atlsys_1L(NULL, "/usr/sbin/psrinfo -v | fgrep GHz", 0, 0);
+      res = atlsys_1L(NULL, "/usr/sbin/psrinfo -v | grep -F GHz", 0, 0);
       if (res)
       {
          mhz = GetIntBeforeWord("GHz", res);
diff --git a/CONFIG/src/backend/archinfo_win.c b/CONFIG/src/backend/archinfo_win.c
index 6865037..763825e 100644
--- a/CONFIG/src/backend/archinfo_win.c
+++ b/CONFIG/src/backend/archinfo_win.c
@@ -118,7 +118,7 @@ int ProbeMhz()
 {
    int mhz=0;
    char *res;
-   res = atlsys_1L(NULL, "fgrep 'cpu MHz' /proc/cpuinfo", 0, 0);
+   res = atlsys_1L(NULL, "grep -F 'cpu MHz' /proc/cpuinfo", 0, 0);
    if (res)
    {
       mhz = GetFirstDouble(res) + 0.5;
@@ -126,7 +126,7 @@ int ProbeMhz()
    }
    if (!mhz)
    {
-      res = atlsys_1L(NULL, "cat /proc/cpuinfo | fgrep clock | fgrep MHz",0,0);
+      res = atlsys_1L(NULL, "cat /proc/cpuinfo | grep -F clock | grep -F MHz",0,0);
       if (res)
       {
          mhz = GetLastLongWithRound(res);
@@ -138,7 +138,7 @@ int ProbeMhz()
  */
    if (!mhz)
    {
-      res = atlsys_1L(NULL, "fgrep 'ClkTck' /proc/cpuinfo", 0, 0);
+      res = atlsys_1L(NULL, "grep -F 'ClkTck' /proc/cpuinfo", 0, 0);
       if (res)
       {
          mhz = GetLastHex(res) / 1000000;
@@ -199,7 +199,7 @@ int ProbeMhz()
  */
    if (!mhz)
    {
-      res = atlsys_1L(NULL, "cat /proc/cpuinfo | fgrep bogomips",0,0);
+      res = atlsys_1L(NULL, "cat /proc/cpuinfo | grep -F bogomips",0,0);
       if (res)
       {
          double result = GetFirstDouble(res);
diff --git a/CONFIG/src/config.c b/CONFIG/src/config.c
index 20b9b04..cb481db 100644
--- a/CONFIG/src/config.c
+++ b/CONFIG/src/config.c
@@ -10,10 +10,10 @@ char *GetStrProbe(int verb, char *targarg, char *prb, char *id)
    char *ln, *res;
    int i;
 
-   i = strlen(targarg) + strlen(prb) + strlen(id) + 48;
+   i = strlen(targarg) + strlen(prb) + strlen(id) + 50;
    ln = malloc(i*sizeof(char));
    assert(ln);
-   sprintf(ln, "make IRun_%s args=\"-v %d %s\" | fgrep '%s='",
+   sprintf(ln, "make IRun_%s args=\"-v %d %s\" | grep -F '%s='",
            prb, verb, targarg, id);
 
    if (verb > 1)
@@ -44,10 +44,10 @@ int GetIntProbe(int verb, char *targarg, char *prb, char *id, int N)
    char *ln, *res;
    int iret=0, i;
 
-   i = strlen(targarg) + strlen(prb) + strlen(id) + 48;
+   i = strlen(targarg) + strlen(prb) + strlen(id) + 50;
    ln = malloc(i*sizeof(char));
    assert(ln);
-   sprintf(ln, "make IRun_%s args=\"-v %d %s\" | fgrep '%s='",
+   sprintf(ln, "make IRun_%s args=\"-v %d %s\" | grep -F '%s='",
            prb, verb, targarg, id);
    if (verb > 1)
       printf("cmnd=%s\n", ln);
@@ -75,10 +75,10 @@ int GetIntProbeSure(int verb, char *targarg, char *prb, char *id,
    char *ln, *res;
    int iret=0, ierr, i;
 
-   i = strlen(targarg) + strlen(prb) + strlen(id) + 48;
+   i = strlen(targarg) + strlen(prb) + strlen(id) + 50;
    ln = malloc(i*sizeof(char));
    assert(ln);
-   sprintf(ln, "make IRun_%s args=\"-v %d %s\" | fgrep '%s='",
+   sprintf(ln, "make IRun_%s args=\"-v %d %s\" | grep -F '%s='",
            prb, verb, targarg, id);
    if (verb > 1)
       printf("cmnd=%s\n", ln);
diff --git a/CONFIG/src/probe_aff.c b/CONFIG/src/probe_aff.c
index 4844dc2..fb4d442 100644
--- a/CONFIG/src/probe_aff.c
+++ b/CONFIG/src/probe_aff.c
@@ -31,10 +31,10 @@ int RunAffProbe(int iaff, int verb, char *targ, int iproc)
    if (targ)
    {
       i += strlen(targ);
-      frm = "make IRun_%s atlrun=atlas_runX targ=%s LIBS='%s' args='%d' 2> /dev/null | fgrep SUCCESS";
+      frm = "make IRun_%s atlrun=atlas_runX targ=%s LIBS='%s' args='%d' 2> /dev/null | grep -F SUCCESS";
    }
    else
-      frm = "make IRun_%s LIBS='%s' args='%d' 2> /dev/null | fgrep SUCCESS";
+      frm = "make IRun_%s LIBS='%s' args='%d' 2> /dev/null | grep -F SUCCESS";
    i += strlen(frm) + strlen(AFFS[iaff]) + strlen(lib) + 11;
    cmnd = malloc(sizeof(char)*i);
    assert(cmnd);
diff --git a/CONFIG/src/probe_arch.c b/CONFIG/src/probe_arch.c
index 38ddcaf..3780371 100644
--- a/CONFIG/src/probe_arch.c
+++ b/CONFIG/src/probe_arch.c
@@ -123,7 +123,7 @@ int ProbeOneInt(enum OSTYPE OS0, enum ASMDIA asmd0, char *targ0,
  */
    if (asmd == gas_x86_32 || asmd == gas_x86_64 || asmd == gas_wow64)
    {
-      frm = "make IRunArchInfo_x86 MYFLAGS=\"-DATL_OS_%s -DATL_%s\" args=\"%s\" %s | fgrep '%s'";
+      frm = "make IRunArchInfo_x86 MYFLAGS=\"-DATL_OS_%s -DATL_%s\" args=\"%s\" %s | grep -F '%s'";
       i = strlen(frm) + strlen(osnam[OS]) + strlen(ASMNAM[asmd]) + strlen(flag)
           + strlen(targ) + strlen(find) + 1;
       cmnd = malloc(sizeof(char)*i);
@@ -143,7 +143,7 @@ int ProbeOneInt(enum OSTYPE OS0, enum ASMDIA asmd0, char *targ0,
  */
    if (!iret)
    {
-      frm = "make IRunArchInfo_%s MYFLAGS=\"-DATL_OS_%s -DATL_%s\" args=\"%s\" %s | fgrep '%s'";
+      frm = "make IRunArchInfo_%s MYFLAGS=\"-DATL_OS_%s -DATL_%s\" args=\"%s\" %s | grep -F '%s'";
       i = 1 + strlen(frm) + strlen(osname) + 3+strlen(osnam[OS]) +
           strlen(ASMNAM[asmd]) + strlen(flag) + strlen(targ) + strlen(find);
       cmnd = malloc(sizeof(char)*i);
@@ -170,7 +170,7 @@ int ConfirmPtrbits(enum OSTYPE OS0, enum ASMDIA asmd0, char *targ0,
 {
    char osname[128];
    char *cmnd, *res, *targ;
-   char *frm="make IRunArchInfo_%s MYFLAGS=\"-m64 -DATL_OS_%s -DATL_%s\" args=\"%s\" %s | fgrep '%s'";
+   char *frm="make IRunArchInfo_%s MYFLAGS=\"-m64 -DATL_OS_%s -DATL_%s\" args=\"%s\" %s | grep -F '%s'";
    enum OSTYPE OS;
    enum ASMDIA asmd;
    int i, iret=0;
diff --git a/CONFIG/src/probe_asm.c b/CONFIG/src/probe_asm.c
index 9bac685..0f5f9e0 100644
--- a/CONFIG/src/probe_asm.c
+++ b/CONFIG/src/probe_asm.c
@@ -7,11 +7,11 @@ int RunASMProbe(char *targ, int verb, enum OSTYPE OS, char *asmnam)
    int i = 0;
    if (targ)
    {
-      frm = "make IRun_%s atlrun=atlas_runX args=\"-v %d\" MYFLAGS=\"-DATL_OS_%s\" targ=%s 2> /dev/null | fgrep SUCCESS";
+      frm = "make IRun_%s atlrun=atlas_runX args=\"-v %d\" MYFLAGS=\"-DATL_OS_%s\" targ=%s 2> /dev/null | grep -F SUCCESS";
       i = strlen(targ);
    }
    else
-      frm = "make IRun_%s args=\"-v %d\" MYFLAGS=\"-DATL_OS_%s\" 2> /dev/null | fgrep SUCCESS";
+      frm = "make IRun_%s args=\"-v %d\" MYFLAGS=\"-DATL_OS_%s\" 2> /dev/null | grep -F SUCCESS";
 
    i += strlen(frm) + strlen(asmnam) + 11 + strlen(osnam[OS]) + 1;
    cmnd = malloc(i*sizeof(char));
diff --git a/CONFIG/src/probe_comp.c b/CONFIG/src/probe_comp.c
index 5db866b..2f1e595 100644
--- a/CONFIG/src/probe_comp.c
+++ b/CONFIG/src/probe_comp.c
@@ -547,14 +547,14 @@ int CompTest(int verb, char *targ, int icomp, char *comp, char *flag)
       trg[0] = '\0';
    }
    if (icomp == F77_)
-      frm = "make IRunF77Comp F77='%s' F77FLAGS='%s' %s | fgrep SUCCESS";
+      frm = "make IRunF77Comp F77='%s' F77FLAGS='%s' %s | grep -F SUCCESS";
    else if (icomp == XCC_)
    {
       targ = NULL;
-      frm = "make IRunXCComp CC='%s' CCFLAGS='%s' %s | fgrep SUCCESS";
+      frm = "make IRunXCComp CC='%s' CCFLAGS='%s' %s | grep -F SUCCESS";
    }
    else
-      frm = "make IRunCComp CC='%s' CCFLAGS='%s' %s | fgrep SUCCESS";
+      frm = "make IRunCComp CC='%s' CCFLAGS='%s' %s | grep -F SUCCESS";
    i = 1 + strlen(frm) + strlen(comp) + strlen(flag) + strlen(trg);
    cmnd = malloc(sizeof(char)*i);
    assert(cmnd);
@@ -1689,7 +1689,7 @@ void TestComps(enum OSTYPE OS, enum MACHTYPE arch, int verb, char *targ,
       {
          if (strcmp(comps[i], comps[ICC_])) /* only check if different */
          {
-            char *frm = "make IRunC2C CC='%s' CCFLAGS='%s' CC1='%s' CC1FLAGS='%s' | fgrep SUCCESS";
+            char *frm = "make IRunC2C CC='%s' CCFLAGS='%s' CC1='%s' CC1FLAGS='%s' | grep -F SUCCESS";
             char *cmnd, *res;
             int j;
 
@@ -1732,9 +1732,9 @@ void TestComps(enum OSTYPE OS, enum MACHTYPE arch, int verb, char *targ,
       int j;
       j = (strstr(comps[F77_], "mgwgfortran") != NULL);
       if (j)
-         frm = "make IRun_f2c args=\"%s -C ic '%s' -F ic '%s' -C if '%s' -F if '%s -static'\" | fgrep 'F2C=('";
+         frm = "make IRun_f2c args=\"%s -C ic '%s' -F ic '%s' -C if '%s' -F if '%s -static'\" | grep -F 'F2C=('";
       else
-         frm = "make IRun_f2c args=\"%s -C ic '%s' -F ic '%s' -C if '%s' -F if '%s'\" | fgrep 'F2C=('";
+         frm = "make IRun_f2c args=\"%s -C ic '%s' -F ic '%s' -C if '%s' -F if '%s'\" | grep -F 'F2C=('";
 
       j = strlen(frm) + strlen(targarg) + strlen(comps[ICC_]) +
           strlen(comps[ICC_+NCOMP]) + strlen(comps[F77_]) +
diff --git a/CONFIG/src/probe_f2c.c b/CONFIG/src/probe_f2c.c
index e1e950f..0cebe62 100644
--- a/CONFIG/src/probe_f2c.c
+++ b/CONFIG/src/probe_f2c.c
@@ -2,7 +2,7 @@
 
 int probe_name(char *targarg, int verb, char **usrcomps)
 {
-   char *frm = "make IRunF2C_name %s F77=\"%s\" F77FLAGS=\"%s\" CC=\"%s\" CCFLAGS=\"%s\" | fgrep 'F2C name'";
+   char *frm = "make IRunF2C_name %s F77=\"%s\" F77FLAGS=\"%s\" CC=\"%s\" CCFLAGS=\"%s\" | grep -F 'F2C name'";
    char *cmnd, *res;
    enum F2CNAME f2cname = f2c_NamErr;
    int i;
@@ -39,7 +39,7 @@ int probe_name(char *targarg, int verb, char **usrcomps)
 
 int probe_int(char *targarg, int verb, char **usrcomps, int f2cname)
 {
-   char *frm="make IRunF2C_int %s F77=\"%s\" F77FLAGS=\"%s\" CC=\"%s\" CCFLAGS=\"-D%s %s\" | fgrep 'F2C int'";
+   char *frm="make IRunF2C_int %s F77=\"%s\" F77FLAGS=\"%s\" CC=\"%s\" CCFLAGS=\"-D%s %s\" | grep -F 'F2C int'";
    char *cmnd, *res;
    enum F2CINT f2c_int = f2c_IntErr;
    int i;
@@ -75,7 +75,7 @@ int probe_int(char *targarg, int verb, char **usrcomps, int f2cname)
 
 int probe_str(char *targarg, int verb, char **usrcomps, int f2cname, int f2cint)
 {
-   char *frm = "make IRunF2C_str %s F77=\"%s\" F77FLAGS=\"%s\" CC=\"%s\" CCFLAGS=\"-D%s -D%s -DString%s %s\" | fgrep 'F2C string'";
+   char *frm = "make IRunF2C_str %s F77=\"%s\" F77FLAGS=\"%s\" CC=\"%s\" CCFLAGS=\"-D%s -D%s -DString%s %s\" | grep -F 'F2C string'";
    enum F2CSTRING f2cstr = f2c_StrErr;
    int i, len;
 
diff --git a/CONFIG/src/probe_pmake.c b/CONFIG/src/probe_pmake.c
index 5884025..7c81924 100644
--- a/CONFIG/src/probe_pmake.c
+++ b/CONFIG/src/probe_pmake.c
@@ -7,7 +7,7 @@ void GetPmake(int verb, enum OSTYPE OS, int ncpu, char *pmake)
    if (!OSIsWin(OS))
    { /* using gnu make */
       char *res;
-      res = atlsys_1L(NULL, "make DoNothing --version | fgrep GNU", verb, 1);
+      res = atlsys_1L(NULL, "make DoNothing --version | grep -F GNU", verb, 1);
       if (res)
       {
          free(res);
diff --git a/CONFIG/src/probe_vec.c b/CONFIG/src/probe_vec.c
index 0893322..4a88547 100644
--- a/CONFIG/src/probe_vec.c
+++ b/CONFIG/src/probe_vec.c
@@ -10,11 +10,11 @@ int RunISAProbe(char *isaxnam, int verb, char *targ, char *opt)
    int i=1;
    if (targ)
    {
-      frm = "make IRun_%s atlrun=atlas_runX targ=%s MYFLAGS='%s' 2> /dev/null | fgrep SUCCESS";
+      frm = "make IRun_%s atlrun=atlas_runX targ=%s MYFLAGS='%s' 2> /dev/null | grep -F SUCCESS";
       i += strlen(targ);
    }
    else
-      frm = "make IRun_%s MYFLAGS='%s' 2> /dev/null | fgrep SUCCESS";
+      frm = "make IRun_%s MYFLAGS='%s' 2> /dev/null | grep -F SUCCESS";
    i += strlen(frm) + strlen(isaxnam) + strlen(opt);
    cmnd = malloc(sizeof(char)*i);
    assert(cmnd);
diff --git a/INSTALL.txt b/INSTALL.txt
index 2d28afd..3d196a5 100644
--- a/INSTALL.txt
+++ b/INSTALL.txt
@@ -194,7 +194,7 @@ with something like:
 ===========================================================================
 DONE BUILDING TESTERS, RUNNING:
 SCOPING FOR FAILURES IN BIN TESTS:
-fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
         bin/Linux_PIIISSE1/sanity.out
 8 cases: 8 passed, 0 skipped, 0 failed
 4 cases: 4 passed, 0 skipped, 0 failed
@@ -206,15 +206,15 @@ fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
 4 cases: 4 passed, 0 skipped, 0 failed
 DONE
 SCOPING FOR FAILURES IN CBLAS TESTS:
-fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
         interfaces/blas/C/testing/Linux_PIIISSE1/sanity.out | \
-                fgrep -v PASSED
+                grep -F -v PASSED
 make[1]: [sanity_test] Error 1 (ignored)
 DONE
 SCOPING FOR FAILURES IN F77BLAS TESTS:
-fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
         interfaces/blas/F77/testing/Linux_PIIISSE1/sanity.out | \
-                fgrep -v PASSED
+                grep -F -v PASSED
 make[1]: [sanity_test] Error 1 (ignored)
 DONE
 make[1]: Leaving directory `/home/rwhaley/TEST/TEST/ATLAS3.3.15'
diff --git a/Make.top b/Make.top
index 7777d66..b7427b1 100644
--- a/Make.top
+++ b/Make.top
@@ -20,7 +20,7 @@ C_sanity_test:
 	@ echo "BUILDING C TESTERS ONLY (GET F77 FOR MORE COMPLETE TESTING):"
 	cd bin ; $(MAKE) sanity_test
 	@ echo "SCOPING FOR FAILURES IN BIN TESTS:"
-	- fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+	- grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
 	        bin/sanity.out
 	@ echo "DONE"
 sanity_test :
@@ -31,24 +31,24 @@ sanity_test :
 	@ echo "   "
 	@ echo "DONE BUILDING TESTERS, RUNNING:"
 	@ echo "SCOPING FOR FAILURES IN BIN TESTS:"
-	- fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+	- grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
 	        bin/sanity.out
 	@ echo "DONE"
 	@ echo "SCOPING FOR FAILURES IN CBLAS TESTS:"
-	- fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+	- grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
 	        interfaces/blas/C/testing/sanity.out | \
-                fgrep -v PASSED
+                grep -F -v PASSED
 	@ echo "DONE"
 	@ echo "SCOPING FOR FAILURES IN F77BLAS TESTS:"
-	- fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+	- grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
 	        interfaces/blas/F77/testing/sanity.out | \
-                fgrep -v PASSED
+                grep -F -v PASSED
 	@ echo "DONE"
 C_ptsanity_test:
 	@ echo "BUILDING C TESTERS ONLY (GET F77 FOR MORE COMPLETE TESTING):"
 	cd bin ; $(MAKE) ptsanity_test
 	@ echo "SCOPING FOR FAILURES IN PTBIN TESTS:"
-	- fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+	- grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
 	        bin/ptsanity.out
 	@ echo "DONE"
 ptsanity_test :
@@ -59,18 +59,18 @@ ptsanity_test :
 	@ echo "   "
 	@ echo "DONE BUILDING TESTERS, RUNNING:"
 	@ echo "SCOPING FOR FAILURES IN PTBIN TESTS:"
-	- fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+	- grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
 	        bin/ptsanity.out
 	@ echo "DONE"
 	@ echo "SCOPING FOR FAILURES IN PTCBLAS TESTS:"
-	- fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+	- grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
 	        interfaces/blas/C/testing/ptsanity.out | \
-                fgrep -v PASSED
+                grep -F -v PASSED
 	@ echo "DONE"
 	@ echo "SCOPING FOR FAILURES IN PTF77BLAS TESTS:"
-	- fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+	- grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
 	        interfaces/blas/F77/testing/ptsanity.out | \
-                fgrep -v PASSED
+                grep -F -v PASSED
 	@ echo "DONE"
 $(BINdir)/AtlasTest : $(SRCdir)/CONFIG/ARCHS/atlas_test1.1.3.tar.bz2
 	cd $(BINdir) ; $(BUNZIP) -c \
@@ -83,8 +83,8 @@ $(BINdir)/LAPACK_TEST : $(SRCdir)/CONFIG/ARCHS/lapack_test.tar.bz2
            $(SRCdir)/CONFIG/ARCHS/lapack_test.tar.bz2 | tar xf -
 scope_lapack_test_pt_pt :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_PT_PT ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_pt_pt: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_PT_PT \
@@ -98,8 +98,8 @@ lapack_test_pt_pt: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_pt_pt.txt 2>&1
 scope_lapack_test_pt_ab :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_PT_AB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_pt_ab: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_PT_AB \
@@ -113,8 +113,8 @@ lapack_test_pt_ab: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_pt_ab.txt 2>&1
 scope_lapack_test_pt_sb :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_PT_SB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_pt_sb: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_PT_SB \
@@ -128,8 +128,8 @@ lapack_test_pt_sb: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_pt_sb.txt 2>&1
 scope_lapack_test_pt_fb :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_PT_FB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_pt_fb: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_PT_FB \
@@ -143,8 +143,8 @@ lapack_test_pt_fb: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_pt_fb.txt 2>&1
 scope_lapack_test_al_pt :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_AL_PT ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_al_pt: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_AL_PT \
@@ -158,8 +158,8 @@ lapack_test_al_pt: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_al_pt.txt 2>&1
 scope_lapack_test_al_ab :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_AL_AB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_al_ab: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_AL_AB \
@@ -173,8 +173,8 @@ lapack_test_al_ab: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_al_ab.txt 2>&1
 scope_lapack_test_al_sb :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_AL_SB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_al_sb: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_AL_SB \
@@ -188,8 +188,8 @@ lapack_test_al_sb: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_al_sb.txt 2>&1
 scope_lapack_test_al_fb :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_AL_FB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_al_fb: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_AL_FB \
@@ -203,8 +203,8 @@ lapack_test_al_fb: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_al_fb.txt 2>&1
 scope_lapack_test_sl_pt :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_SL_PT ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_sl_pt: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_SL_PT \
@@ -218,8 +218,8 @@ lapack_test_sl_pt: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_sl_pt.txt 2>&1
 scope_lapack_test_sl_ab :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_SL_AB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_sl_ab: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_SL_AB \
@@ -233,8 +233,8 @@ lapack_test_sl_ab: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_sl_ab.txt 2>&1
 scope_lapack_test_sl_sb :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_SL_SB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_sl_sb: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_SL_SB \
@@ -248,8 +248,8 @@ lapack_test_sl_sb: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_sl_sb.txt 2>&1
 scope_lapack_test_sl_fb :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_SL_FB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_sl_fb: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_SL_FB \
@@ -263,8 +263,8 @@ lapack_test_sl_fb: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_sl_fb.txt 2>&1
 scope_lapack_test_fl_pt :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_FL_PT ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_fl_pt: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_FL_PT \
@@ -278,8 +278,8 @@ lapack_test_fl_pt: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_fl_pt.txt 2>&1
 scope_lapack_test_fl_ab :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_FL_AB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_fl_ab: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_FL_AB \
@@ -293,8 +293,8 @@ lapack_test_fl_ab: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_fl_ab.txt 2>&1
 scope_lapack_test_fl_sb :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_FL_SB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_fl_sb: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_FL_SB \
@@ -308,8 +308,8 @@ lapack_test_fl_sb: $(BINdir)/LAPACK_TEST
                 $(BINdir)/LAPACK_TEST/SUMMARY_fl_sb.txt 2>&1
 scope_lapack_test_fl_fb :
 	cd $(BINdir)/LAPACK_TEST/LAOUT_FL_FB ; \
-           fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
-           | fgrep -v "error exits"
+           grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL *.out \
+           | grep -F -v "error exits"
 lapack_test_fl_fb: $(BINdir)/LAPACK_TEST
 	cd $(BINdir)/LAPACK_TEST ; make cleanup
 	- rm -rf $(BINdir)/LAPACK_TEST/LAOUT_FL_FB \
@@ -330,8 +330,8 @@ $(BINdir)/AtlasTest/$(ARCH) : force_build
 	cd $(BINdir)/AtlasTest/$(ARCH) ; ../configure --atldir=$(BLDdir)
 scope_full_results: force_build
 	cd $(BINdir)/AtlasTest/$(ARCH) ;  ../scope.sh
-	- fgrep -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
-                 $(BINdir)/AtlasTest/$(ARCH)/$(ARCH).out | fgrep -v PASSED
+	- grep -F -e fault -e FAULT -e error -e ERROR -e fail -e FAIL \
+                 $(BINdir)/AtlasTest/$(ARCH)/$(ARCH).out | grep -F -v PASSED
 
 full_test : $(BINdir)/AtlasTest
 	$(MAKE) -f Make.top $(BINdir)/AtlasTest/$(ARCH)
diff --git a/bin/l2peak.sh b/bin/l2peak.sh
index e6bca06..bfcd8eb 100755
--- a/bin/l2peak.sh
+++ b/bin/l2peak.sh
@@ -4,7 +4,7 @@
 #
 # Discover the BLDdir
 #
-SRCdir=`fgrep "SRCdir =" Make.inc | sed -e "s/ *SRCdir = *//"`
+SRCdir=`grep -F "SRCdir =" Make.inc | sed -e "s/ *SRCdir = *//"`
 BINdir=$SRCdir/bin
 #
 # First time out-of-cache operations
diff --git a/bin/sum2csv.sh b/bin/sum2csv.sh
index fe1929f..c4c7f57 100755
--- a/bin/sum2csv.sh
+++ b/bin/sum2csv.sh
@@ -8,7 +8,7 @@ tfil=tmptmp.out
 ofil=`echo ${fil} | sed -e "s/out/csv/"`
 make xr1sum2csv
 rm -f $ofil $tfil
-n=`fgrep -n 'CUT HERE' $fil | sed 's/:.*//'`
+n=`grep -F -n 'CUT HERE' $fil | sed 's/:.*//'`
 head -n $n $fil > $tfil
 ./xr1sum2csv -i $tfil -m $imf -D 2 YU XU -p 1 -o $ofil
 rm -f $tfil
diff --git a/doc/ChangeLog b/doc/ChangeLog
index 3a17de1..6f54ae9 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1763,7 +1763,7 @@ ATLAS 3.5.17 released 12/13/03, changes from 3.5.16:
        + same asymptotic GEMM speed due to hand-tuned kernel
    * Workarounds for icc bugs on IA64Itan2:
      - Fixes errors in [d,s]TRSM, [c,z]HER, [c,z]HPR, [c,z]HER2K, [c,z]SYR2K
-     - fgrep code for ATL_IntelIccBugs:
+     - grep -F code for ATL_IntelIccBugs:
        + ATLAS/src/blas/level2/ATL_[hpr,her].c
        + ATLAS/src/blas/level3/kernel/ATL_syrk2_put[L,U].c
        + ATLAS/src/blas/level3/ATL_trsm.c
diff --git a/doc/TroubleShoot.txt b/doc/TroubleShoot.txt
index 573457b..007b53e 100644
--- a/doc/TroubleShoot.txt
+++ b/doc/TroubleShoot.txt
@@ -31,7 +31,7 @@ does not point the user at a specific log file, do an ls -l, and examine
 the newest file aside from ERROR.LOG & SUMMARY.LOG.
 
 Under Unix, you may want to do
-   fgrep -i error *
+   grep -F -i error *
 in your INSTALL_LOG directory to look for problems (though some errors occur
 naturally in an ATLAS install, since ATLAS tests things that are only legal
 on some platforms).
diff --git a/tune/blas/gemm/cpygen.c b/tune/blas/gemm/cpygen.c
index eaebf5a..8d17cbb 100644
--- a/tune/blas/gemm/cpygen.c
+++ b/tune/blas/gemm/cpygen.c
@@ -20,7 +20,7 @@ void GenMake(ATL_cpnode_t *cb, char *path)
    fnam = malloc(len);
    assert(fnam);
    sprintf(fnam, "%s/Makefile", path);
-   assert(!Sys2File("fgrep 'BLDdir =' Make.inc", fnam));
+   assert(!Sys2File("grep -F 'BLDdir =' Make.inc", fnam));
    fp = fopen(fnam, "a");
    assert(fp);
    free(fnam);
diff --git a/tune/sysinfo/emit_buildinfo.c b/tune/sysinfo/emit_buildinfo.c
index 2ed2f17..8a6b347 100644
--- a/tune/sysinfo/emit_buildinfo.c
+++ b/tune/sysinfo/emit_buildinfo.c
@@ -97,7 +97,7 @@ void GetVers(char *comp, char *vers)
 void GetMakeMacro(char *str, char *val)
 {
    char ln[128];
-   sprintf(ln, "make print_%s | fgrep -v make", str);
+   sprintf(ln, "make print_%s | grep -F -v make", str);
    if (CmndOneLine(ln, val)) strcpy(val, "UNKNOWN");
 }
 void GetInstInfo()