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Fix configure script to enable Clang building #51

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Fix configure script to enable Clang building #51

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25 changes: 19 additions & 6 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -157,13 +157,26 @@ AC_PROG_RANLIB
AC_FUNC_ERROR_AT_LINE
AC_FUNC_MALLOC
AC_FUNC_REALLOC

# AC_CHECK_LIB (library, function, [action-if-found], [action-if-not-found], [other-libraries])
AC_CHECK_LIB([c], [malloc, realloc, free, memset, memmove], [],
[AC_MSG_ERROR(Need standard c library!)],
[])
AC_CHECK_LIB([m], [sinf, cosf, expf, cargf, cexpf, crealf, cimagf, sqrtf], [],
[AC_MSG_ERROR(Need standard (complex) math library!)],
[])
AC_CHECK_LIB([c],[main], [],[AC_MSG_ERROR(Could not use standard C library)], [])
AC_CHECK_LIB([m],[main], [],[AC_MSG_ERROR(Could not use standard math library)],[])

# AC_CHECK_FUNC(function, [action-if-found], [action-if-not-found])
AC_CHECK_FUNC([malloc], [],[AC_MSG_ERROR(Could not use malloc())])
AC_CHECK_FUNC([realloc], [],[AC_MSG_ERROR(Could not use realloc())],)
AC_CHECK_FUNC([free], [],[AC_MSG_ERROR(Could not use free())],)
AC_CHECK_FUNC([memset], [],[AC_MSG_ERROR(Could not use memset())],)
AC_CHECK_FUNC([memmove], [],[AC_MSG_ERROR(Could not use memove())],)

AC_CHECK_FUNC([sinf], [],[AC_MSG_ERROR(Could not use sinf())],)
AC_CHECK_FUNC([cosf], [],[AC_MSG_ERROR(Could not use cosf())],)
AC_CHECK_FUNC([expf], [],[AC_MSG_ERROR(Could not use expf())],)
AC_CHECK_FUNC([cargf], [],[AC_MSG_ERROR(Could not use cargf())],)
AC_CHECK_FUNC([cexpf], [],[AC_MSG_ERROR(Could not use cexpf())],)
AC_CHECK_FUNC([crealf], [],[AC_MSG_ERROR(Could not use crealf())],)
AC_CHECK_FUNC([cimagf], [],[AC_MSG_ERROR(Could not use cimagf())],)
AC_CHECK_FUNC([sqrtf], [],[AC_MSG_ERROR(Could not use sqrtf())],)

# Check for necessary header files
AC_CHECK_HEADERS([stdio.h stdlib.h complex.h string.h getopt.h sys/resource.h float.h inttypes.h limits.h stdlib.h string.h unistd.h])
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