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https://github.com/owasp-modsecurity/ModSecurity.git
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d76c527751
Debian is taking steps to remove xml2-config in favour of pkg-config. This means ModSecurity will build without libxml2 support by default on Debian, Ubuntu and other distributions tracking Debian packages. This patch modifies build/libxml.m4 to check for libxml2 via pkg-config, falling back to xml2-config if necessary.
136 lines
4.2 KiB
Plaintext
136 lines
4.2 KiB
Plaintext
dnl Check for LIBXML2 Libraries
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dnl CHECK_LIBXML2(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
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dnl Sets:
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dnl LIBXML2_CFLAGS
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dnl LIBXML2_LIBS
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AC_DEFUN([CHECK_XML2CONFIG], [
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AC_MSG_CHECKING([for libxml2 config script])
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for x in ${test_paths}; do
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dnl # Determine if the script was specified and use it directly
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if test ! -d "$x" -a -e "$x"; then
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LIBXML2_CONFIG=$x
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libxml2_path="no"
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break
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fi
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dnl # Try known config script names/locations
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for LIBXML2_CONFIG in xml2-config xml-2-config xml-config; do
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if test -e "${x}/bin/${LIBXML2_CONFIG}"; then
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libxml2_path="${x}/bin"
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break
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elif test -e "${x}/${LIBXML2_CONFIG}"; then
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libxml2_path="${x}"
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break
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else
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libxml2_path=""
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fi
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done
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if test -n "$libxml2_path"; then
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break
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fi
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done
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if test -n "${libxml2_path}"; then
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if test "${libxml2_path}" != "no"; then
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LIBXML2_CONFIG="${libxml2_path}/${LIBXML2_CONFIG}"
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fi
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AC_MSG_RESULT([${LIBXML2_CONFIG}])
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LIBXML2_VERSION=`${LIBXML2_CONFIG} --version | sed 's/^[[^0-9]][[^[:space:]]][[^[:space:]]]*[[[:space:]]]*//'`
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if test ! -z "${LIBXML2_VERSION}"; then AC_MSG_NOTICE(xml VERSION: $LIBXML2_VERSION); fi
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LIBXML2_CFLAGS="`${LIBXML2_CONFIG} --cflags` -DWITH_LIBXML2"
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if test ! -z "${LIBXML2_CFLAGS}"; then AC_MSG_NOTICE(xml CFLAGS: $LIBXML2_CFLAGS); fi
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LIBXML2_LDADD="`${LIBXML2_CONFIG} --libs`"
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if test ! -z "${LIBXML2_LDADD}"; then AC_MSG_NOTICE(xml LDADD: $LIBXML2_LDADD); fi
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AC_MSG_CHECKING([if libxml2 is at least v${LIBXML2_MIN_VERSION}])
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libxml2_min_ver=`echo ${LIBXML2_MIN_VERSION} | awk -F. '{print (\$ 1 * 1000000) + (\$ 2 * 1000) + \$ 3}'`
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libxml2_ver=`echo ${LIBXML2_VERSION} | awk -F. '{print (\$ 1 * 1000000) + (\$ 2 * 1000) + \$ 3}'`
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if test "$libxml2_ver" -ge "$libxml2_min_ver"; then
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AC_MSG_RESULT([yes, $LIBXML2_VERSION])
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else
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AC_MSG_RESULT([no, $LIBXML2_VERSION])
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AC_MSG_ERROR([NOTE: libxml2 library must be at least ${LIBXML2_MIN_VERSION}])
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fi
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else
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AC_MSG_RESULT([no])
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fi
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])
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AC_DEFUN([CHECK_LIBXML2], [
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AC_ARG_WITH(
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libxml,
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[AC_HELP_STRING([--with-libxml=PATH],[Path to libxml2 prefix or config script])],
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[test_paths="${with_libxml}"],
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[test_paths="/usr/local/libxml2 /usr/local/xml2 /usr/local/xml /usr/local /opt/libxml2 /opt/libxml /opt/xml2 /opt/xml /opt /usr"])
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LIBXML2_MIN_VERSION="2.6.29"
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LIBXML2_PKG_NAME="libxml-2.0"
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LIBXML2_CONFIG=""
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LIBXML2_VERSION=""
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LIBXML2_CFLAGS=""
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LIBXML2_CPPFLAGS=""
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LIBXML2_LDADD=""
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LIBXML2_LDFLAGS=""
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if test "x${with_libxml}" != "xno"; then
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if test -n "${PKG_CONFIG}"; then
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AC_MSG_CHECKING([for libxml2 >= ${LIBXML2_MIN_VERSION} via pkg-config])
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if `${PKG_CONFIG} --exists "${LIBXML2_PKG_NAME} >= ${LIBXML2_MIN_VERSION}"`; then
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LIBXML2_VERSION="`${PKG_CONFIG} --modversion ${LIBXML2_PKG_NAME}`"
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LIBXML2_CFLAGS="`${PKG_CONFIG} --cflags ${LIBXML2_PKG_NAME}` -DWITH_LIBXML2"
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LIBXML2_LDADD="`${PKG_CONFIG} --libs-only-l ${LIBXML2_PKG_NAME}`"
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LIBXML2_LDFLAGS="`${PKG_CONFIG} --libs-only-L --libs-only-other ${LIBXML2_PKG_NAME}`"
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AC_MSG_RESULT([found version ${LIBXML2_VERSION}])
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else
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AC_MSG_RESULT([not found])
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fi
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fi
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if test -z "${LIBXML2_VERSION}"; then
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CHECK_XML2CONFIG
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fi
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fi
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AC_SUBST(LIBXML2_CONFIG)
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AC_SUBST(LIBXML2_VERSION)
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AC_SUBST(LIBXML2_CFLAGS)
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AC_SUBST(LIBXML2_CPPFLAGS)
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AC_SUBST(LIBXML2_LDADD)
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AC_SUBST(LIBXML2_LDFLAGS)
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if test "x${with_libxml}" == "xno"; then
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LIBXML2_DISABLED=yes
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else
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if test "x${with_libxml}" != "x"; then
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LIBXML2_MANDATORY=yes
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fi
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fi
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if test -z "${LIBXML2_VERSION}"; then
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AC_MSG_NOTICE([*** libxml2 library not found.])
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if test -z "${LIBXML2_MANDATORY}"; then
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if test -z "${LIBXML2_DISABLED}"; then
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LIBXML2_FOUND=0
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else
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LIBXML2_FOUND=2
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fi
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else
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AC_MSG_ERROR([Libxml2 was explicitly referenced but it was not found])
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LIBXML2_FOUND=-1
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fi
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else
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LIBXML2_FOUND=1
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AC_MSG_NOTICE([using libxml2 v${LIBXML2_VERSION}])
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LIBXML2_DISPLAY="${LIBXML2_LDADD}, ${LIBXML2_CFLAGS}"
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fi
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AC_SUBST(LIBXML2_FOUND)
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AC_SUBST(LIBXML2_DISPLAY)
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])
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