mkproto.sh: export LC_ALL instead of setting in-line

Hope that fixes the flatpak-build regression.

src/libc/dj64/parsers/mkproto.sh

@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 
 set -o pipefail
+set -x
 
 if [ $# -lt 5 ]; then
     echo "generate thunk prototypes compatible with fdpp's thunk_gen & plt"
@@ -43,13 +44,20 @@ extr_proto() {
 }
 
 list_syms() {
-    LC_ALL=C nm -A "$1" | grep " $2 " | tr -s '[:blank:]' | cut -d " " -f 3 | \
+    saved_LA=$LC_ALL
+    export LC_ALL=C
+    nm -A "$1" | grep " $2 " | tr -s '[:blank:]' | cut -d " " -f 3 | \
 	sed 's/^_//'
+    echo nm returned $?
+    export LC_ALL=$saved_LA
 }
 
 list_syms2() {
-    LC_ALL=C nm -A "$1" | grep -E " $2 "\|" $3 " | tr -s '[:blank:]' | cut -d " " -f 3 | \
+    saved_LA=$LC_ALL
+    export LC_ALL=C
+    nm -A "$1" | grep -E " $2 "\|" $3 " | tr -s '[:blank:]' | cut -d " " -f 3 | \
 	sed 's/^_//'
+    export LC_ALL=$saved_LA
 }
 
 TF=/tmp/tagsxx
@@ -72,6 +80,9 @@ export RTAGS
 list_syms $TL T | xargs -I '{}' bash -c "extr_proto $TF '{}' ASMFUNC" | nl -n ln -v 0 >$1
 list_syms $TL U | xargs -I '{}' bash -c "extr_proto $TF '{}' ASMCFUNC" | nl -n ln -v 0 >$2
 echo "#define THUNK_INCS 1" >$3
+list_syms2 $TL U T >&2
+echo THAT >&2
+$RTAGS -t $TF __djgpp_exception_processor
 list_syms2 $TL U T | xargs $RTAGS -t $TF | expand | tr -s '[:blank:]' | \
 	cut -d " " -f 2 | sort | uniq | \
 	sed -E 's/.*(include)\/(.*)/#\1 "\2"/' >>$3