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view auto/endianness @ 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 | 47936d1c98e9 |
children |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. echo $ngx_n "checking for system byte ordering ...$ngx_c" echo >> $NGX_ERR echo "checking for system byte ordering" >> $NGX_ERR cat << END > $NGX_AUTOTEST.c int main() { int i = 0x11223344; char *p; p = (char *) &i; if (*p == 0x44) return 0; return 1; } END ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS \ -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_LD_OPT $ngx_feature_libs" eval "$ngx_test >> $NGX_AUTOCONF_ERR 2>&1" if [ -x $NGX_AUTOTEST ]; then if $NGX_AUTOTEST >/dev/null 2>&1; then echo " little endian" have=NGX_HAVE_LITTLE_ENDIAN . auto/have else echo " big endian" fi rm $NGX_AUTOTEST* else rm $NGX_AUTOTEST* echo echo "$0: error: cannot detect system byte ordering" exit 1 fi