mirror of
https://github.com/owasp-modsecurity/ModSecurity.git
synced 2025-08-14 05:45:59 +03:00
9e230d4a81
This commit makes it possible to build ModSecurity on systems where
/bin/sh is a POSIX-compliant shell that is not Bash. Debian, Alpine
Linux, and Gentoo Linux with the system shell set to not Bash, are
examples of such systems.
Previously, the helper macros contained two types of Bashisms:
* The '==' comparison operator. Very easy to change, as the proper
POSIX-compliant form is '='. For example:
if test "${var}" == "myvalue" -> if test "${var}" = "myvalue"
* The '-a' (and) operator in the 'test' builtin. The '-a' and '-o'
operators were removed in POSIX 2024 (Issue 8). The correct form
is to use the '&&' and '||' operators respectively. For instance:
if test -d "${var}" -a -r "${var}/file" ->
if test -d "${var}" && test -r "${var}/file"
Bug: https://bugs.gentoo.org/887135
Signed-off-by: Zurab Kvachadze <zurabid2016@gmail.com>
188 lines
6.7 KiB
Plaintext
188 lines
6.7 KiB
Plaintext
dnl Check for PCRE2 Libraries
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dnl CHECK_PCRE2(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
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AC_DEFUN([PROG_PCRE2], [
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# Possible names for the pcre2 library/package (pkg-config)
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PCRE2_POSSIBLE_LIB_NAMES="pcre2 pcre2-8 libpcre2-8"
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# Possible extensions for the library
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PCRE2_POSSIBLE_EXTENSIONS="so so0 la sl dll dylib so.0.0.0"
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# Possible paths (if pkg-config was not found, proceed with the file lookup)
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PCRE2_POSSIBLE_PATHS="/usr/lib /usr/local/lib /usr/local/libpcre2-8 /usr/local/pcre2 /usr/local /opt/libpcre2-8 /opt/pcre2 /opt /usr /usr/lib64 /opt/local"
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# Variables to be set by this very own script.
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PCRE2_VERSION=""
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PCRE2_CFLAGS=""
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PCRE2_CPPFLAGS=""
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PCRE2_LDADD=""
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PCRE2_LDFLAGS=""
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AC_ARG_WITH(
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pcre2,
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[AS_HELP_STRING([--with-pcre2=PATH],[Path to pcre2 prefix or config script])]
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)
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if test "x${with_pcre2}" = "xno"; then
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AC_DEFINE(HAVE_PCRE2, 0, [Support for PCRE2 was disabled by the utilization of --without-pcre2 or --with-pcre2=no])
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AC_MSG_NOTICE([Support for PCRE2 was disabled by the utilization of --without-pcre2 or --with-pcre2=no])
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PCRE2_DISABLED=yes
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else
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PCRE2_MANDATORY=yes
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AC_MSG_NOTICE([PCRE2 is enabled by default.])
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# if test "x${with_pcre2}" = "xyes"; then
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# PCRE2_MANDATORY=yes
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# AC_MSG_NOTICE([PCRE2 support was marked as mandatory by the utilization of --with-pcre2=yes])
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# fi
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# for x in ${PCRE2_POSSIBLE_LIB_NAMES}; do
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# CHECK_FOR_PCRE2_AT(${x})
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# if test -n "${PCRE2_VERSION}"; then
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# break
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# fi
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# done
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# if test "x${with_pcre2}" != "xyes" or test "x${with_pcre2}" = "xyes"; then
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if test "x${with_pcre2}" = "x" || test "x${with_pcre2}" = "xyes"; then
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# Nothing about PCRE2 was informed, using the pkg-config to figure things out.
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if test -n "${PKG_CONFIG}"; then
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PCRE2_PKG_NAME=""
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for x in ${PCRE2_POSSIBLE_LIB_NAMES}; do
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if ${PKG_CONFIG} --exists ${x}; then
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PCRE2_PKG_NAME="$x"
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break
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fi
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done
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fi
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AC_MSG_NOTICE([Nothing about PCRE2 was informed during the configure phase. Trying to detect it on the platform...])
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if test -n "${PCRE2_PKG_NAME}"; then
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# Package was found using the pkg-config scripts
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PCRE2_VERSION="`${PKG_CONFIG} ${PCRE2_PKG_NAME} --modversion`"
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PCRE2_CFLAGS="`${PKG_CONFIG} ${PCRE2_PKG_NAME} --cflags`"
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PCRE2_LDADD="`${PKG_CONFIG} ${PCRE2_PKG_NAME} --libs-only-l`"
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PCRE2_LDFLAGS="`${PKG_CONFIG} ${PCRE2_PKG_NAME} --libs-only-L --libs-only-other`"
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PCRE2_DISPLAY="${PCRE2_LDADD}, ${PCRE2_CFLAGS}"
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else
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# If pkg-config did not find anything useful, go over file lookup.
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for x in ${PCRE2_POSSIBLE_PATHS}; do
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CHECK_FOR_PCRE2_AT(${x})
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if test -n "${PCRE2_VERSION}"; then
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break
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fi
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done
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fi
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fi
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if test "x${with_pcre2}" != "x"; then
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# An specific path was informed, lets check.
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PCRE2_MANDATORY=yes
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CHECK_FOR_PCRE2_AT(${with_pcre2})
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fi
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# fi
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fi
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if test -z "${PCRE2_LDADD}"; then
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if test -z "${PCRE2_MANDATORY}"; then
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if test -z "${PCRE2_DISABLED}"; then
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AC_MSG_NOTICE([PCRE2 library was not found])
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PCRE2_FOUND=0
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else
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PCRE2_FOUND=2
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fi
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else
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AC_MSG_ERROR([PCRE2 was explicitly referenced but it was not found])
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PCRE2_FOUND=-1
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fi
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else
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if test -z "${PCRE2_MANDATORY}"; then
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PCRE2_FOUND=2
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AC_MSG_NOTICE([PCRE2 is disabled by default.])
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else
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PCRE2_FOUND=1
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PCRE2_CFLAGS="${PCRE2_CFLAGS}"
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PCRE2_DISPLAY="${PCRE2_LDADD}, ${PCRE2_CFLAGS}"
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AC_MSG_NOTICE([using PCRE2_VERSION ${PCRE2_VERSION}])
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AC_MSG_NOTICE([using PCRE2_LDADD ${PCRE2_LDADD}])
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AC_MSG_NOTICE([using PCRE2_LIBS ${PCRE2_LIBS}])
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AC_MSG_NOTICE([using PCRE2_LDFLAGS ${PCRE2_LDFLAGS}])
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AC_MSG_NOTICE([using PCRE2_CFLAGS ${PCRE2_CFLAGS}])
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AC_MSG_NOTICE([using PCRE2_DISPLAY ${PCRE2_DISPLAY}])
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AC_SUBST(PCRE2_VERSION)
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AC_SUBST(PCRE2_LDADD)
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AC_SUBST(PCRE2_LIBS)
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AC_SUBST(PCRE2_LDFLAGS)
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AC_SUBST(PCRE2_CFLAGS)
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AC_SUBST(PCRE2_DISPLAY)
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fi
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fi
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AC_SUBST(PCRE2_FOUND)
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]) # AC_DEFUN [PROG_PCRE2]
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AC_DEFUN([CHECK_FOR_PCRE2_AT], [
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path=$1
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echo "*** LOOKING AT PATH: " ${path}
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for y in ${PCRE2_POSSIBLE_EXTENSIONS}; do
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for z in ${PCRE2_POSSIBLE_LIB_NAMES}; do
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if test -e "${path}/${z}.${y}"; then
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pcre2_lib_path="${path}/"
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pcre2_lib_name="${z}"
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pcre2_lib_file="${pcre2_lib_path}/${z}.${y}"
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break
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fi
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if test -e "${path}/lib${z}.${y}"; then
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pcre2_lib_path="${path}/"
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pcre2_lib_name="${z}"
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pcre2_lib_file="${pcre2_lib_path}/lib${z}.${y}"
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break
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fi
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if test -e "${path}/lib/lib${z}.${y}"; then
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pcre2_lib_path="${path}/lib/"
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pcre2_lib_name="${z}"
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pcre2_lib_file="${pcre2_lib_path}/lib${z}.${y}"
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break
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fi
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if test -e "${path}/lib/x86_64-linux-gnu/lib${z}.${y}"; then
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pcre2_lib_path="${path}/lib/x86_64-linux-gnu/"
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pcre2_lib_name="${z}"
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pcre2_lib_file="${pcre2_lib_path}/lib${z}.${y}"
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break
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fi
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if test -e "${path}/lib/i386-linux-gnu/lib${z}.${y}"; then
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pcre2_lib_path="${path}/lib/i386-linux-gnu/"
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pcre2_lib_name="${z}"
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pcre2_lib_file="${pcre2_lib_path}/lib${z}.${y}"
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break
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fi
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done
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if test -n "$pcre2_lib_path"; then
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break
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fi
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done
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if test -e "${path}/include/pcre2.h"; then
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pcre2_inc_path="${path}/include"
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elif test -e "${path}/pcre2.h"; then
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pcre2_inc_path="${path}"
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elif test -e "${path}/include/pcre2/pcre2.h"; then
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pcre2_inc_path="${path}/include"
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fi
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if test -n "${pcre2_lib_path}"; then
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AC_MSG_NOTICE([PCRE2 library found at: ${pcre2_lib_file}])
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fi
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if test -n "${pcre2_inc_path}"; then
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AC_MSG_NOTICE([PCRE2 headers found at: ${pcre2_inc_path}])
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fi
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if test -n "${pcre2_lib_path}" && test -n "${pcre2_inc_path}"; then
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# TODO: Compile a piece of code to check the version.
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PCRE2_CFLAGS="-I${pcre2_inc_path}"
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PCRE2_LDADD="-l${pcre2_lib_name}"
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PCRE2_LDFLAGS="-L${pcre2_lib_path}"
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PCRE2_DISPLAY="${pcre2_lib_file}, ${pcre2_inc_path}"
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fi
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]) # AC_DEFUN [CHECK_FOR_PCRE2_AT]
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