diff options
Diffstat (limited to 'config/gcc-version.m4')
| -rw-r--r-- | config/gcc-version.m4 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/config/gcc-version.m4 b/config/gcc-version.m4 new file mode 100644 index 000000000..8de74bb2a --- /dev/null +++ b/config/gcc-version.m4 @@ -0,0 +1,28 @@ +dnl Usage: TL_AC_GCC_VERSION(TOPSRCDIR) +dnl +dnl Set up the variables: +dnl +dnl gcc_version_trigger: pathname of gcc's version.c, if available +dnl gcc_version_full: full gcc version string +dnl gcc_version: the first "word" in $gcc_version_full +dnl +dnl TOPSRCDIR is the top-level source directory. +AC_DEFUN([TL_AC_GCC_VERSION], +[ +changequote(,)dnl +if test "${with_gcc_version_trigger+set}" = set; then + gcc_version_trigger=$with_gcc_version_trigger +else + gcc_version_trigger=$1/gcc/version.c +fi +if test -f "${gcc_version_trigger}"; then + gcc_version_full=`grep version_string "${gcc_version_trigger}" | sed -e 's/.*"\([^"]*\)".*/\1/'` +else + gcc_version_full=`$CC -v 2>&1 | sed -n 's/^gcc version //p'` +fi +gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'` +changequote([,])dnl +AC_SUBST(gcc_version_trigger) +AC_SUBST(gcc_version_full) +AC_SUBST(gcc_version) +])dnl |