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Makes re2 detectable by the build scripts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,175 @@ | ||
| dnl Check for RE2 Libraries | ||
| dnl CHECK_RE2(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]) | ||
|
|
||
| AC_DEFUN([PROG_RE2], [ | ||
| # Needed if pkg-config will be used. | ||
| AC_REQUIRE([PKG_PROG_PKG_CONFIG]) | ||
| # Possible names for the re2 library/package (pkg-config) | ||
| RE2_POSSIBLE_LIB_NAMES="re2" | ||
| # Possible extensions for the library | ||
| RE2_POSSIBLE_EXTENSIONS="so la sl dll dylib" | ||
| # Possible paths (if pkg-config was not found, proceed with the file lookup) | ||
| RE2_POSSIBLE_PATHS="/usr/lib /usr/local/lib /usr/local/libre2 /usr/local/re2 /usr/local /opt/libre2 /opt/re2 /opt /usr /usr/lib64" | ||
| # Variables to be set by this very own script. | ||
| RE2_VERSION="" | ||
| RE2_CFLAGS="" | ||
| RE2_CPPFLAGS="" | ||
| RE2_LDADD="" | ||
| RE2_LDFLAGS="" | ||
| AC_ARG_WITH( | ||
| re2, | ||
| AC_HELP_STRING( | ||
| [--with-re2=PATH], | ||
| [Path to re2 prefix or config script] | ||
| ) | ||
| ) | ||
| if test "x${with_re2}" == "xno"; then | ||
| AC_DEFINE(HAVE_GEOIP, 0, [Support for RE2 was disabled by the utilization of --without-re2 or --with-re2=no]) | ||
| AC_MSG_NOTICE([Support for RE2 was disabled by the utilization of --without-re2 or --with-re2=no]) | ||
| RE2_DISABLED=yes | ||
| else | ||
| if test "x${with_re2}" == "xyes"; then | ||
| RE2_MANDATORY=yes | ||
| AC_MSG_NOTICE([RE2 support was marked as mandatory by the utilization of --with-re2=yes]) | ||
| fi | ||
| # for x in ${RE2_POSSIBLE_LIB_NAMES}; do | ||
| # CHECK_FOR_RE2_AT(${x}) | ||
| # if test -n "${RE2_VERSION}"; then | ||
| # break | ||
| # fi | ||
| # done | ||
| # if test "x${with_re2}" != "xyes" or test "x${with_re2}" == "xyes"; then | ||
| if test "x${with_re2}" == "x" || test "x${with_re2}" == "xyes"; then | ||
| # Nothing about GeoIP was informed, using the pkg-config to figure things out. | ||
| if test -n "${PKG_CONFIG}"; then | ||
| RE2_PKG_NAME="" | ||
| for x in ${RE2_POSSIBLE_LIB_NAMES}; do | ||
| if ${PKG_CONFIG} --exists ${x}; then | ||
| RE2_PKG_NAME="$x" | ||
| break | ||
| fi | ||
| done | ||
| fi | ||
| AC_MSG_NOTICE([Nothing about GeoIP was informed during the configure phase. Trying to detect it on the platform...]) | ||
| if test -n "${RE2_PKG_NAME}"; then | ||
| # Package was found using the pkg-config scripts | ||
| RE2_VERSION="`${PKG_CONFIG} ${RE2_PKG_NAME} --modversion`" | ||
| RE2_CFLAGS="`${PKG_CONFIG} ${RE2_PKG_NAME} --cflags`" | ||
| RE2_LDADD="`${PKG_CONFIG} ${RE2_PKG_NAME} --libs-only-l`" | ||
| RE2_LDFLAGS="`${PKG_CONFIG} ${RE2_PKG_NAME} --libs-only-L --libs-only-other`" | ||
| RE2_DISPLAY="${RE2_LDADD}, ${RE2_CFLAGS}" | ||
| else | ||
| # If pkg-config did not find anything useful, go over file lookup. | ||
| for x in ${RE2_POSSIBLE_LIB_NAMES}; do | ||
| CHECK_FOR_RE2_AT(${x}) | ||
| if test -n "${RE2_VERSION}"; then | ||
| break | ||
| fi | ||
| done | ||
| fi | ||
| fi | ||
| if test "x${with_re2}" != "x"; then | ||
| # An specific path was informed, lets check. | ||
| RE2_MANDATORY=yes | ||
| CHECK_FOR_RE2_AT(${with_re2}) | ||
| fi | ||
| # fi | ||
| fi | ||
| if test -z "${RE2_LDADD}"; then | ||
| if test -z "${RE2_MANDATORY}"; then | ||
| if test -z "${RE2_DISABLED}"; then | ||
| AC_MSG_NOTICE([RE2 library was not found]) | ||
| RE2_FOUND=0 | ||
| else | ||
| RE2_FOUND=2 | ||
| fi | ||
| else | ||
| AC_MSG_ERROR([RE2 was explicitly referenced but it was not found]) | ||
| RE2_FOUND=-1 | ||
| fi | ||
| else | ||
| RE2_FOUND=1 | ||
| AC_MSG_NOTICE([using RE2 v${RE2_VERSION}]) | ||
| RE2_CFLAGS="-DWITH_RE2 ${RE2_CFLAGS}" | ||
| RE2_DISPLAY="${RE2_LDADD}, ${RE2_CFLAGS}" | ||
| AC_SUBST(RE2_VERSION) | ||
| AC_SUBST(RE2_LDADD) | ||
| AC_SUBST(RE2_LIBS) | ||
| AC_SUBST(RE2_LDFLAGS) | ||
| AC_SUBST(RE2_CFLAGS) | ||
| AC_SUBST(RE2_DISPLAY) | ||
| fi | ||
| AC_SUBST(RE2_FOUND) | ||
| ]) # AC_DEFUN [PROG_RE2] | ||
|
|
||
|
|
||
| AC_DEFUN([CHECK_FOR_RE2_AT], [ | ||
| path=$1 | ||
| for y in ${RE2_POSSIBLE_EXTENSIONS}; do | ||
| for z in ${RE2_POSSIBLE_LIB_NAMES}; do | ||
| if test -e "${path}/${z}.${y}"; then | ||
| re2_lib_path="${path}/" | ||
| re2_lib_name="${z}" | ||
| re2_lib_file="${re2_lib_path}/${z}.${y}" | ||
| break | ||
| fi | ||
| if test -e "${path}/lib${z}.${y}"; then | ||
| re2_lib_path="${path}/" | ||
| re2_lib_name="${z}" | ||
| re2_lib_file="${re2_lib_path}/lib${z}.${y}" | ||
| break | ||
| fi | ||
| if test -e "${path}/lib/lib${z}.${y}"; then | ||
| re2_lib_path="${path}/lib/" | ||
| re2_lib_name="${z}" | ||
| re2_lib_file="${re2_lib_path}/lib${z}.${y}" | ||
| break | ||
| fi | ||
| if test -e "${path}/lib/x86_64-linux-gnu/lib${z}.${y}"; then | ||
| re2_lib_path="${path}/lib/x86_64-linux-gnu/" | ||
| re2_lib_name="${z}" | ||
| re2_lib_file="${re2_lib_path}/lib${z}.${y}" | ||
| break | ||
| fi | ||
| done | ||
| if test -n "$re2_lib_path"; then | ||
| break | ||
| fi | ||
| done | ||
| if test -e "${path}/include/re2_parse.h"; then | ||
| re2_inc_path="${path}/include" | ||
| elif test -e "${path}/re2_parse.h"; then | ||
| re2_inc_path="${path}" | ||
| elif test -e "${path}/include/re2/re2_parse.h"; then | ||
| re2_inc_path="${path}/include" | ||
| fi | ||
| if test -n "${re2_lib_path}"; then | ||
| AC_MSG_NOTICE([RE2 library found at: ${re2_lib_file}]) | ||
| fi | ||
| if test -n "${re2_inc_path}"; then | ||
| AC_MSG_NOTICE([RE2 headers found at: ${re2_inc_path}]) | ||
| fi | ||
| if test -n "${re2_lib_path}" -a -n "${re2_inc_path}"; then | ||
| # TODO: Compile a piece of code to check the version. | ||
| RE2_CFLAGS="-I${re2_inc_path}" | ||
| RE2_LDADD="-l${re2_lib_name}" | ||
| RE2_LDFLAGS="-L${re2_lib_path}" | ||
| RE2_DISPLAY="${re2_lib_file}, ${re2_inc_path}" | ||
| fi | ||
| ]) # AC_DEFUN [CHECK_FOR_RE2_AT] |
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