Re: Problem building with static pcre

> ... I don't know what is being tested to check pcre.h usability.

configure should create a config.log that shows you how it tested.
does that exist?

Lee


On 1/6/13, Ian Silvester <[email protected]> wrote:
> Hi all,
>
> So in the run-up to the 3.0.20 release I'm testing package builds, and am
> tripping over a test in the configure script when trying to build the binary
> with static pcre. Using the following invocation against a completely
> vanilla checkout of current (on my build machine that does have libpcre
> installed):
>
> CFLAGS= -isysroot /Developer/SDKs/MacOSX10.6.sdk -arch x86_64
> -mmacosx-version-min=10.6
> LDFLAGS= -isysroot /Developer/SDKs/MacOSX10.6.sdk -arch x86_64
> -mmacosx-version-min=10.6
> ./configure --with-user=_privoxy --with-group=_privoxy
>
> I get the following (snippet of) output:
>
> checking for pcre_compile in -lpcre... yes
> checking pcre.h usability... no
> checking pcre.h presence... yes
> configure: WARNING: pcre.h: present but cannot be compiled
> configure: WARNING: pcre.h:     check for missing prerequisite headers?
> configure: WARNING: pcre.h: see the Autoconf documentation
> configure: WARNING: pcre.h:     section "Present But Cannot Be Compiled"
> configure: WARNING: pcre.h: proceeding with the preprocessor's result
> configure: WARNING: pcre.h: in the future, the compiler will take
> precedence
> checking for pcre.h... yes
> checking for regcomp in -lpcreposix... yes
> checking pcreposix.h usability... no
> checking pcreposix.h presence... yes
> configure: WARNING: pcreposix.h: present but cannot be compiled
> configure: WARNING: pcreposix.h:     check for missing prerequisite
> headers?
> configure: WARNING: pcreposix.h: see the Autoconf documentation
> configure: WARNING: pcreposix.h:     section "Present But Cannot Be
> Compiled"
> configure: WARNING: pcreposix.h: proceeding with the preprocessor's result
> configure: WARNING: pcreposix.h: in the future, the compiler will take
> precedence
> checking for pcreposix.h... yes
> checking for zlibVersion in -lz... yes
> using libpcre
> Enabling connection-sharing support.
> configure: creating ./config.status
> config.status: creating GNUmakefile
> config.status: creating doc/source/ldp.dsl
> config.status: creating config.h
>
> Notice: building the privoxy software.
> rm -f a.out actions.o cgi.o cgiedit.o cgisimple.o deanimate.o encode.o
> errlog.o filters.o gateway.o jbsockets.o jcc.o list.o loadcfg.o loaders.o
> miscutil.o parsers.o ssplit.o urlmatch.o  pcrs.o     privoxy default.action
> \
> 		`find . -name TAGS -o -name tags | grep -v .git` config.base config.tmp
> gcc -c -pipe  -isysroot /Developer/SDKs/MacOSX10.6.sdk -arch x86_64
> -mmacosx-version-min=10.6   -Dunix -Wall   actions.c -o actions.o
> In file included from actions.c:47:
> project.h:75:22: error: pcre.h: No such file or directory
> In file included from project.h:80,
>                  from actions.c:47:
> pcrs.h:94: error: expected specifier-qualifier-list before ‘pcre’
> project.h:91:27: error: pcreposix.h: No such file or directory
> In file included from actions.c:47:
> project.h:369: error: expected specifier-qualifier-list before ‘regex_t’
> actions.c: In function ‘update_action_bits_for_tag’:
> actions.c:814: error: ‘struct url_spec’ has no member named ‘tag_regex’
> actions.c:820: warning: implicit declaration of function ‘regexec’
> actions.c:820: error: ‘struct url_spec’ has no member named ‘tag_regex’
> make: *** [actions.o] Error 1
>
>
> Obviously the failure is at "checking pcre.h usability... no", which results
> in configure thinking that dynamic pcre is to be used ("using libpcre" later
> in the configure output); the compile then fails since I'm not including the
> path to the library's header (obviously enough, since I want to use static
> pcre!).
>
> My issue is that I don't understand autoconf syntax so despite my best
> efforts to comprehend it I don't know what is being tested to check pcre.h
> usability. I've worked around this by using the --disable-dynamic-pcre
> configure option but it is a shame to have to force it - I'd be happier if I
> could understand why the test fails.
>
> Thanks for any pointers,
>
> Ian
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