diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/configure.ac b/configure.ac index afb8cd28..202e30b1 100644 --- a/configure.ac +++ b/configure.ac @@ -109,10 +109,17 @@ AC_ARG_ENABLE([gcc-warnings], *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;; esac gl_gcc_warnings=$enableval], - [if test -d "$srcdir"/.git; then - gl_gcc_warnings=yes - else - gl_gcc_warnings=no + [gl_gcc_warnings=no + if test "$GCC" = yes && test -d "$srcdir"/.git; then + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #if 6 < __GNUC__ + (2 <= __GNUC_MINOR__) + int main (void) { return 0; } + #else + #error "This GCC is too old." + #endif + ]])], + [gl_gcc_warnings=yes]) fi] ) |