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>
250 lines
8.9 KiB
Plaintext
250 lines
8.9 KiB
Plaintext
dnl Check for LUA Libraries
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dnl CHECK_LUA(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
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AC_DEFUN([CHECK_LUA],
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[dnl
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# Possible names for the lua library/package (pkg-config)
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LUA_POSSIBLE_LIB_NAMES="lua54 lua5.4 lua-5.4 lua53 lua5.3 lua-5.3 lua52 lua5.2 lua-5.2 lua51 lua5.1 lua-5.1 lua"
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# Possible extensions for the library
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LUA_POSSIBLE_EXTENSIONS="so la sl dll dylib"
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# Possible paths (if pkg-config was not found, proceed with the file lookup)
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LUA_POSSIBLE_PATHS="/usr/lib /usr/local/lib /usr/local/lib64 /usr/local/lua /usr/local/liblua /usr/local /opt /usr /usr/lib64 /opt/local /usr/lib/lua5.3/liblua /usr/lib/lua5.2/liblua"
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# Variables to be set by this very own script.
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LUA_CFLAGS=""
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LUA_LDFLAGS=""
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LUA_LDADD=""
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LUA_DISPLAY=""
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AC_ARG_WITH(
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lua,
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[AS_HELP_STRING([--with-lua=PATH],[Path to lua prefix])]
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)
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if test "x${with_lua}" = "xno"; then
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AC_DEFINE(HAVE_LUA, 0, [Support for LUA was disabled by the utilization of --without-lua or --with-lua=no])
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AC_MSG_NOTICE([Support for LUA was disabled by the utilization of --without-lua or --with-lua=no])
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LUA_DISABLED=yes
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else
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if test "x${with_lua}" = "xyes"; then
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LUA_MANDATORY=yes
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AC_MSG_NOTICE([LUA support was marked as mandatory by the utilization of --with-lua=yes])
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else
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LUA_MANDATORY=no
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fi
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for x in ${LUA_POSSIBLE_PATHS}; do
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CHECK_FOR_LUA_AT(${x})
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if test -n "${LUA_CFLAGS}"; then
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break
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fi
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done
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if test -z "${LUA_CFLAGS}"; then
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#Trying to figure out the version using pkg-config...
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if test -n "${PKG_CONFIG}"; then
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LUA_PKG_NAME=""
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for x in ${LUA_POSSIBLE_LIB_NAMES}; do
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if ${PKG_CONFIG} --exists ${x}; then
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LUA_PKG_NAME="$x"
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LUA_PKG_VERSION="`${PKG_CONFIG} ${LUA_PKG_NAME} --modversion`"
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break
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fi
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done
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fi
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if test -n "${LUA_PKG_NAME}"; then
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# Package was found using the pkg-config scripts
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LUA_PKG_VERSION="`${PKG_CONFIG} ${LUA_PKG_NAME} --modversion`"
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LUA_CFLAGS="`${PKG_CONFIG} ${LUA_PKG_NAME} --cflags`"
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LUA_LDADD="`${PKG_CONFIG} ${LUA_PKG_NAME} --libs-only-l`"
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LUA_LDFLAGS="`${PKG_CONFIG} ${LUA_PKG_NAME} --libs-only-L --libs-only-other`"
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LUA_DISPLAY="${LUA_LDADD}, ${LUA_CFLAGS}"
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case $LUA_PKG_VERSION in
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(5.1*) LUA_CFLAGS="-DWITH_LUA_5_1 ${LUA_CFLAGS}" ; lua_5_1=1 ;;
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(5.2*) LUA_CFLAGS="-DWITH_LUA_5_2 ${LUA_CFLAGS}" ; lua_5_2=1 ;;
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(5.3*) LUA_CFLAGS="-DWITH_LUA_5_3 ${LUA_CFLAGS}" ; lua_5_3=1 ;;
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(5.4*) LUA_CFLAGS="-DWITH_LUA_5_4 ${LUA_CFLAGS}" ; lua_5_4=1 ;;
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(2.0*) LUA_CFLAGS="-DWITH_LUA_5_1 ${LUA_CFLAGS}" ; lua_5_1=1 ;;
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(2.1*) LUA_CFLAGS="-DWITH_LUA_5_1 -DWITH_LUA_JIT_2_1 ${LUA_CFLAGS}" ; lua_5_1=1 ;;
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esac
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AC_MSG_NOTICE([LUA pkg-config version: ${LUA_PKG_VERSION}])
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fi
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fi
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fi
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if test -z "${LUA_CFLAGS}"; then
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if test -z "${LUA_MANDATORY}" || test "x${LUA_MANDATORY}" = "xno"; then
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if test -z "${LUA_DISABLED}"; then
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AC_MSG_NOTICE([LUA library was not found])
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LUA_FOUND=0
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else
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LUA_FOUND=2
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fi
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else
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AC_MSG_ERROR([LUA was explicitly referenced but it was not found])
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LUA_FOUND=-1
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fi
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else
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if test -z "${LUA_MANDATORY}" || test "x${LUA_MANDATORY}" = "xno"; then
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LUA_FOUND=1
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AC_MSG_NOTICE([using LUA ${LUA_LDADD}])
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LUA_CFLAGS="-DWITH_LUA ${LUA_CFLAGS}"
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LUA_DISPLAY="${LUA_LDADD} ${LUA_LDFLAGS}, ${LUA_CFLAGS}"
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AC_SUBST(LUA_LDFLAGS)
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AC_SUBST(LUA_LDADD)
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AC_SUBST(LUA_CFLAGS)
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AC_SUBST(LUA_DISPLAY)
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else
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LUA_FOUND=1
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AC_MSG_NOTICE([using LUA ${LUA_LDADD}])
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LUA_CFLAGS="-DWITH_LUA ${LUA_CFLAGS}"
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LUA_DISPLAY="${LUA_LDADD} ${LUA_LDFLAGS}, ${LUA_CFLAGS}"
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AC_SUBST(LUA_LDFLAGS)
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AC_SUBST(LUA_LDADD)
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AC_SUBST(LUA_CFLAGS)
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AC_SUBST(LUA_DISPLAY)
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fi
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fi
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AC_SUBST(LUA_FOUND)
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]) # AC_DEFUN [CHECK_LUA]
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AC_DEFUN([CHECK_FOR_LUA_AT], [
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path=$1
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echo "*** LOOKING AT PATH: " ${path}
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for y in ${LUA_POSSIBLE_EXTENSIONS}; do
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for z in ${LUA_POSSIBLE_LIB_NAMES}; do
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if test -e "${path}/${z}.${y}"; then
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lua_lib_path="${path}/"
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lua_lib_name="${z}"
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lua_lib_file="${lua_lib_path}/${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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lua_lib_path="${path}/"
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lua_lib_name="${z}"
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lua_lib_file="${lua_lib_path}/lib${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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lua_lib_path="${path}/lib/"
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lua_lib_name="${z}"
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lua_lib_file="${lua_lib_path}/lib${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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lua_lib_path="${path}/lib/x86_64-linux-gnu/"
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lua_lib_name="${z}"
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lua_lib_file="${lua_lib_path}/lib${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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lua_lib_path="${path}/lib/i386-linux-gnu/"
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lua_lib_name="${z}"
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lua_lib_file="${lua_lib_path}/lib${z}.${y}"
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break
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fi
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done
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if test -n "$lua_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 "${path}/include/lua.h"; then
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lua_inc_path="${path}/include"
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elif test -e "${path}/lua.h"; then
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lua_inc_path="${path}"
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elif test -e "${path}/include/lua/lua.h"; then
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lua_inc_path="${path}/include/lua"
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elif test -e "${path}/include/lua5.4/lua.h"; then
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lua_inc_path="${path}/include/lua5.4"
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LUA_VERSION=504
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elif test -e "${path}/include/lua5.3/lua.h"; then
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lua_inc_path="${path}/include/lua5.3"
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LUA_VERSION=503
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elif test -e "${path}/include/lua5.2/lua.h"; then
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lua_inc_path="${path}/include/lua5.2"
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LUA_VERSION=502
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elif test -e "${path}/include/lua5.1/lua.h"; then
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lua_inc_path="${path}/include/lua5.1"
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LUA_VERSION=501
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elif test -e "${path}/include/luajit-2.0/lua.h"; then
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lua_inc_path="${path}/include/luajit-2.0"
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LUA_VERSION=501
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fi
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if test -n "${lua_lib_path}"; then
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AC_MSG_NOTICE([LUA library found at: ${lua_lib_file}])
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fi
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if test -n "${lua_inc_path}"; then
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AC_MSG_NOTICE([LUA headers found at: ${lua_inc_path}])
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fi
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if test -n "${lua_lib_path}" && test -n "${lua_inc_path}"; then
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LUA_CFLAGS="-I${lua_inc_path}"
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LUA_LDADD="-l${lua_lib_name}"
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LUA_LDFLAGS="-L${lua_lib_path}"
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LUA_DISPLAY="${lua_lib_file}, ${lua_inc_path}"
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# Double checking version from lua.h...
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <lua.h> ],
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[ #if (LUA_VERSION_NUM == 502)
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return 0;
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#else
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#error Lua 5.2 not detected
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#endif ]])],
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[ LUA_VERSION=502 ], [ lua_5_2=0 ]
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)
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <lua.h> ],
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[ #if (LUA_VERSION_NUM == 502)
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return 0;
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#else
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#error Lua 5.2 not detected
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#endif ]])],
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[ LUA_VERSION=502 ], [ lua_5_2=0 ]
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)
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <lua.h> ],
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[ #if (LUA_VERSION_NUM == 504)
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return 0;
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#else
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#error Lua 5.4 not detected
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#endif ]])],
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[ LUA_VERSION=504 ], [ lua_5_4=0 ]
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)
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if test -z "${LUA_VERSION}" ; then
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# As a last resort, try to find LUA version from $lua_inc_path
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while read -r line
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do
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case "$line" in
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(\#define\ LUA_VERSION_NUM*501*) LUA_VERSION=501 ;;
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(\#define\ LUA_VERSION_NUM*502*) LUA_VERSION=502 ;;
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(\#define\ LUA_VERSION_NUM*503*) LUA_VERSION=503 ;;
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(\#define\ LUA_VERSION_NUM*504*) LUA_VERSION=504
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esac
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done <"${lua_inc_path}/lua.h"
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AC_MSG_NOTICE([LUA_VERSION is ${LUA_VERSION} found at: ${lua_inc_path}])
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else
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AC_MSG_NOTICE([LUA version from includes: ${LUA_VERSION}])
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fi
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case $LUA_VERSION in
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(501) LUA_CFLAGS="-DWITH_LUA_5_1 ${LUA_CFLAGS}" ; lua_5_1=1 ;;
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(502) LUA_CFLAGS="-DWITH_LUA_5_2 ${LUA_CFLAGS}" ; lua_5_2=1 ;;
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(503) LUA_CFLAGS="-DWITH_LUA_5_3 ${LUA_CFLAGS}" ; lua_5_3=1 ;;
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(504) LUA_CFLAGS="-DWITH_LUA_5_4 ${LUA_CFLAGS}" ; lua_5_4=1 ;;
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esac
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fi
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]) # AC_DEFUN [CHECK_FOR_LUA_AT]
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