Mercurial > hg > nginx
view auto/feature @ 5041:7a6fbac9f3e3 stable-1.2
Merge of r4961: configure: better check for PCRE JIT.
On Mac OS X system toolchain by default prefers include files
from /usr/local/include, but libraries from /usr/lib. This might result in
various problems, in particular the one outlined below.
If the PCRE library is installed into /usr/local/, this results in pcre.h
being used from /usr/local/include (with PCRE_CONFIG_JIT defined), but
libpcre from /usr/lib (as shipped with the OS, without pcre_free_study()
symbol). As a result build fails as we use pcre_free_study() function
if we try to compile with PCRE JIT support.
Obvious workaround to the root cause is to ask compiler to prefer
library from /usr/local/lib via ./configure --with-ld-opt="-L/usr/local/lib".
On the other hand, in any case it would be good to check if the function
we are going to use is available, hence the change.
See thread here for details:
http://mailman.nginx.org/pipermail/nginx-devel/2012-December/003074.html
Prodded by Piotr Sikora.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Sun, 10 Feb 2013 03:18:08 +0000 |
parents | d620f497c50f |
children | 434548349838 |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. echo $ngx_n "checking for $ngx_feature ...$ngx_c" cat << END >> $NGX_AUTOCONF_ERR ---------------------------------------- checking for $ngx_feature END ngx_found=no if test -n "$ngx_feature_name"; then ngx_have_feature=`echo $ngx_feature_name \ | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ` fi if test -n "$ngx_feature_path"; then for ngx_temp in $ngx_feature_path; do ngx_feature_inc_path="$ngx_feature_inc_path -I $ngx_temp" done fi cat << END > $NGX_AUTOTEST.c #include <sys/types.h> $NGX_INCLUDE_UNISTD_H $ngx_feature_incs int main() { $ngx_feature_test; return 0; } END ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS $ngx_feature_inc_path \ -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_TEST_LD_OPT $ngx_feature_libs" ngx_feature_inc_path= eval "/bin/sh -c \"$ngx_test\" >> $NGX_AUTOCONF_ERR 2>&1" if [ -x $NGX_AUTOTEST ]; then case "$ngx_feature_run" in yes) # /bin/sh is used to intercept "Killed" or "Abort trap" messages if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then echo " found" ngx_found=yes if test -n "$ngx_feature_name"; then have=$ngx_have_feature . auto/have fi else echo " found but is not working" fi ;; value) # /bin/sh is used to intercept "Killed" or "Abort trap" messages if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then echo " found" ngx_found=yes cat << END >> $NGX_AUTO_CONFIG_H #ifndef $ngx_feature_name #define $ngx_feature_name `$NGX_AUTOTEST` #endif END else echo " found but is not working" fi ;; bug) # /bin/sh is used to intercept "Killed" or "Abort trap" messages if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then echo " not found" else echo " found" ngx_found=yes if test -n "$ngx_feature_name"; then have=$ngx_have_feature . auto/have fi fi ;; *) echo " found" ngx_found=yes if test -n "$ngx_feature_name"; then have=$ngx_have_feature . auto/have fi ;; esac else echo " not found" echo "----------" >> $NGX_AUTOCONF_ERR cat $NGX_AUTOTEST.c >> $NGX_AUTOCONF_ERR echo "----------" >> $NGX_AUTOCONF_ERR echo $ngx_test >> $NGX_AUTOCONF_ERR echo "----------" >> $NGX_AUTOCONF_ERR fi rm $NGX_AUTOTEST*