diff options
| -rw-r--r-- | configure.ac | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/configure.ac b/configure.ac index 6504144ee..295802dc5 100644 --- a/configure.ac +++ b/configure.ac @@ -67,21 +67,6 @@ cu_have_perl=yes case $PERL in *"/missing "*) cu_have_perl=no;; esac AM_CONDITIONAL([HAVE_PERL], [test $cu_have_perl = yes]) -AC_ARG_ENABLE([gcc-warnings], - [AS_HELP_STRING([--enable-gcc-warnings], - [turn on many GCC warnings (for developers; best with GNU make)])], - [case $enableval in - yes|no) ;; - *) 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 - fi] -) - # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found]) # ------------------------------------------------ # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND. @@ -100,6 +85,23 @@ AC_DEFUN([gl_GCC_VERSION_IFELSE], ] ) +AC_ARG_ENABLE([gcc-warnings], + [AS_HELP_STRING([--enable-gcc-warnings], + [turn on many GCC warnings (for developers; best with GNU make)])], + [case $enableval in + yes|no) ;; + *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;; + esac + gl_gcc_warnings=$enableval], + [ + # GCC provides fine-grained control over diagnostics which + # is used in gnulib for example to suppress warnings from + # certain sections of code. So if this is available and + # we're running from a git repo, then auto enable the warnings. + gl_gcc_warnings=no + gl_GCC_VERSION_IFELSE([4], [6], [test -d "$srcdir"/.git && gl_gcc_warnings=yes])] +) + if test "$gl_gcc_warnings" = yes; then gl_WARN_ADD([-Werror], [WERROR_CFLAGS]) AC_SUBST([WERROR_CFLAGS]) |