ModSecurity/apache2/build/find_lua.m4

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dnl Check for LUA Libraries
dnl CHECK_LUA(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
dnl Sets:
dnl LUA_CFLAGS
dnl LUA_LIBS
LUA_CONFIG="pkg-config"
LUA_PKGNAME="lua5.1"
LUA_CFLAGS=""
LUA_LIBS=""
AC_DEFUN([CHECK_LUA],
[dnl
AC_ARG_WITH(
lua,
[AC_HELP_STRING([--with-lua=PATH],[Path to the lua prefix])],
lua_path="$withval",
:)
dnl # Determine lua lib directory
if test -z "${lua_path}"; then
test_paths="/usr/local /usr"
else
test_paths="${lua_path}"
fi
AC_MSG_CHECKING([for ${LUA_CONFIG} for Lua])
for x in ${test_paths}; do
if test -e "${x}/bin/${LUA_CONFIG}"; then
with_lua="${x}"
break
else
with_lua=""
fi
done
if test -n "${with_lua}"; then
LUA_CONFIG="${with_lua}/bin/${LUA_CONFIG}"
AC_MSG_RESULT([${LUA_CONFIG} ${LUA_PKGNAME}])
LUA_CFLAGS="`${LUA_CONFIG} ${LUA_PKGNAME} --cflags`"
LUA_LIBS="`${LUA_CONFIG} ${LUA_PKGNAME} --libs`"
CFLAGS=$save_CFLAGS
LDFLAGS=$save_LDFLAGS
else
AC_MSG_RESULT([no])
fi
AC_SUBST(LUA_LIBS)
AC_SUBST(LUA_CFLAGS)
if test -z "${LUA_LIBS}"; then
AC_MSG_NOTICE([*** lua library not found.])
ifelse([$2], , AC_MSG_ERROR([lua library is required]), $2)
else
AC_MSG_NOTICE([using '${LUA_LIBS}' for lua Library])
ifelse([$1], , , $1)
fi
])