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Autoconf Macro: ax_path_lib_pcre
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<hr>
<h1>
ax_path_lib_pcre
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AX_PATH_LIB_PCRE [(A/NA)]</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
check for pcre lib and set PCRE_LIBS and PCRE_CFLAGS accordingly.
</p>
<p>
also provide --with-pcre option that may point to the $prefix of the pcre
installation - the macro will check $pcre/include and $pcre/lib to contain
the necessary files.
</p>
<p>
the usual two ACTION-IF-FOUND / ACTION-IF-NOT-FOUND are supported and they
can take advantage of the LIBS/CFLAGS additions.
</p>
</div>
<h2>
Author
</h2>
<p class="indent">
Guido Draheim <guidod@gmx.de>
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2005-01-22
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AX_PATH_LIB_PCRE],[dnl
AC_MSG_CHECKING([lib pcre])
AC_ARG_WITH(pcre,
[ --with-pcre[[=prefix]] compile xmlpcre part (via libpcre check)],,
with_pcre="yes")
if test ".$with_pcre" = ".no" ; then
AC_MSG_RESULT([disabled])
m4_ifval($2,$2)
else
AC_MSG_RESULT([(testing)])
AC_CHECK_LIB(pcre, pcre_study)
if test "$ac_cv_lib_pcre_pcre_study" = "yes" ; then
PCRE_LIBS="-lpcre"
AC_MSG_CHECKING([lib pcre])
AC_MSG_RESULT([$PCRE_LIBS])
m4_ifval($1,$1)
else
OLDLDFLAGS="$LDFLAGS" ; LDFLAGS="$LDFLAGS -L$with_pcre/lib"
OLDCPPFLAGS="$CPPFLAGS" ; CPPFLAGS="$CPPFLAGS -I$with_pcre/include"
AC_CHECK_LIB(pcre, pcre_compile)
CPPFLAGS="$OLDCPPFLAGS"
LDFLAGS="$OLDLDFLAGS"
if test "$ac_cv_lib_pcre_pcre_compile" = "yes" ; then
AC_MSG_RESULT(.setting PCRE_LIBS -L$with_pcre/lib -lpcre)
PCRE_LIBS="-L$with_pcre/lib -lpcre"
test -d "$with_pcre/include" && PCRE_CFLAGS="-I$with_pcre/include"
AC_MSG_CHECKING([lib pcre])
AC_MSG_RESULT([$PCRE_LIBS])
m4_ifval($1,$1)
else
AC_MSG_CHECKING([lib pcre])
AC_MSG_RESULT([no, (WARNING)])
m4_ifval($2,$2)
fi
fi
fi
AC_SUBST([PCRE_LIBS])
AC_SUBST([PCRE_CFLAGS])
])
</pre>
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