ModSecurity/apache2/build/find_pcre.m4
2009-08-25 22:19:33 +00:00

82 lines
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dnl Check for PCRE Libraries
dnl CHECK_PCRE(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
dnl Sets:
dnl PCRE_CFLAGS
dnl PCRE_LIBS
PCRE_CONFIG=""
PCRE_CFLAGS=""
PCRE_LIBS=""
AC_DEFUN([CHECK_PCRE],
[dnl
AC_ARG_WITH(
pcre,
[AC_HELP_STRING([--with-pcre=PATH],[Path to pcre prefix or config script])],
[test_paths="${with_pcre}"],
[test_paths="/usr/local/libpcre /usr/local/pcre /usr/local /opt/libpcre /opt/pcre /opt /usr"])
AC_MSG_CHECKING([for libpcre config script])
dnl # Determine pcre lib directory
if test -z "${with_pcre}"; then
test_paths="/usr/local/pcre /usr/local /usr"
else
test_paths="${with_pcre}"
fi
for x in ${test_paths}; do
dnl # Determine if the script was specified and use it directly
if test ! -d "$x" -a -e "$x"; then
PCRE_CONFIG=$x
pcre_path="no"
break
fi
dnl # Try known config script names/locations
for PCRE_CONFIG in pcre-config; do
if test -e "${x}/bin/${PCRE_CONFIG}"; then
pcre_path="${x}/bin"
break
elif test -e "${x}/${PCRE_CONFIG}"; then
pcre_path="${x}"
break
else
pcre_path=""
fi
done
if test -n "$pcre_path"; then
break
fi
done
CFLAGS=$save_CFLAGS
LDFLAGS=$save_LDFLAGS
if test -n "${pcre_path}"; then
if test "${pcre_path}" != "no"; then
PCRE_CONFIG="${pcre_path}/${PCRE_CONFIG}"
fi
AC_MSG_RESULT([${PCRE_CONFIG}])
PCRE_CFLAGS="`${PCRE_CONFIG} --cflags`"
if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(pcre CFLAGS: $PCRE_CFLAGS); fi
PCRE_LIBS="`${PCRE_CONFIG} --libs`"
if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(pcre LIBS: $PCRE_LIBS); fi
CFLAGS=$save_CFLAGS
LDFLAGS=$save_LDFLAGS
else
AC_MSG_RESULT([no])
fi
AC_SUBST(PCRE_LIBS)
AC_SUBST(PCRE_CFLAGS)
if test -z "${PCRE_LIBS}"; then
AC_MSG_NOTICE([*** pcre library not found.])
ifelse([$2], , AC_MSG_ERROR([pcre library is required]), $2)
else
AC_MSG_NOTICE([using '${PCRE_LIBS}' for pcre Library])
ifelse([$1], , , $1)
fi
])