diff options
| -rw-r--r-- | configure.ac | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index f4f682157..96e768998 100644 --- a/configure.ac +++ b/configure.ac @@ -457,8 +457,13 @@ error CFLAGS="-fp_port -mieee-fp -wd1572 -wd265 -wd186 -wd239 $CFLAGS" ],[AC_MSG_RESULT(no)]) -dnl If compiler is gcc, then use some specific flags. -dnl But don't touch user other flags. +dnl If CFLAGS has not been set explicitly and the compiler is GCC, then +dnl use some specific flags. But don't touch user other flags. +dnl Note: This is done even when CFLAGS has been set from GMP's CFLAGS +dnl (__GMP_CFLAGS macro in gmp.h) above. The consequence is that this +dnl might yield a compilation failure if the -Werror option appears in +dnl __GMP_CFLAGS. But in this case, since -Werror is not used by default, +dnl one may expect that the user would also set CFLAGS for MPFR. if test "$test_CFLAGS" != set && test -n "$GCC"; then CFLAGS="-Wpointer-arith $CFLAGS" AC_MSG_CHECKING(whether the selected language is C++) |