diff options
| author | Petri Savolainen <petri.savolainen@nokia.com> | 2019-06-20 16:13:34 +0300 |
|---|---|---|
| committer | Petri Savolainen <petri.savolainen@nokia.com> | 2019-06-26 08:34:24 +0300 |
| commit | e2b2e2357d6999f62ccecdd5a34adefb7a8735fa (patch) | |
| tree | 5a3b1a4592741437fd022adc618662e4d6dc93b7 /configure.ac | |
| parent | c317e53fa7268154ca5a50cc2685ca9cdf2a89d8 (diff) | |
configure: default CFLAGS definition
If user defines CFLAGS do not add -march option as user defined
flags may contain another -march or other related options.
Automake sets CFLAGS to "-g -O2" by default, so CFLAGS check
must to be done before AM_INIT.
Signed-off-by: Petri Savolainen <petri.savolainen@nokia.com>
Reviewed-by: Dmitry Eremin-Solenikov <deremin-solenikov@cavium.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/configure.ac b/configure.ac index 8f9de1489..ab5393dbf 100644 --- a/configure.ac +++ b/configure.ac @@ -34,6 +34,13 @@ AC_SUBST(ODPH_VERSION_MAJOR) ODPH_VERSION_MINOR=odph_version_minor AC_SUBST(ODPH_VERSION_MINOR) +########################################################################## +# Test if user has set CFLAGS. Automake initializes CFLAGS to "-g -O2" +# by default. +########################################################################## +AS_IF([test "$ac_cv_env_CFLAGS_set" = ""], [user_cflags=0], [user_cflags=1]) + +# Initialize automake AM_INIT_AUTOMAKE([1.9 tar-pax subdir-objects foreign nostdinc -Wall -Werror]) AC_CONFIG_SRCDIR([include/odp/api/spec/init.h]) AM_CONFIG_HEADER([include/config.h]) @@ -216,12 +223,16 @@ AC_ARG_ENABLE([abi-compat], [if test "x$enableval" = "xno"; then ODP_ABI_COMPAT=0 abi_compat=no + #if there is no ABI compatibility the .so numbers are meaningless ODP_LIBSO_VERSION=0:0:0 - # do not try -march=native for clang due to possible failures on - # clang optimizations + + # do not use -march=native with clang (due to possible failures on + # clang optimizations) or when user have defined CFLAGS (may contain + # another -march option). $CC --version | grep -q clang - if test $? -ne 0; then + + if test $? -ne 0 -a $user_cflags -eq 0; then ODP_CHECK_CFLAG([-march=native]) fi fi]) |