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view auto/types/uintptr_t @ 4960:b39d947fcb82
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 is 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 | Wed, 12 Dec 2012 13:50:07 +0000 |
parents | 62d8db8c7157 |
children | 434548349838 |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. echo $ngx_n "checking for uintptr_t ...$ngx_c" echo >> $NGX_AUTOCONF_ERR echo "checking for uintptr_t" >> $NGX_AUTOCONF_ERR found=no cat << END > $NGX_AUTOTEST.c #include <sys/types.h> $NGX_INTTYPES_H int main() { uintptr_t i = 0; return (int) i; } END ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS \ -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_LD_OPT" eval "$ngx_test >> $NGX_AUTOCONF_ERR 2>&1" if [ -x $NGX_AUTOTEST ]; then echo " uintptr_t found" found=yes else echo $ngx_n " uintptr_t not found" $ngx_c fi rm $NGX_AUTOTEST* if [ $found = no ]; then found="uint`expr 8 \* $ngx_ptr_size`_t" echo ", $found used" echo "typedef $found uintptr_t;" >> $NGX_AUTO_CONFIG_H echo "typedef $found intptr_t;" | sed -e 's/u//g' >> $NGX_AUTO_CONFIG_H fi