# LIBCURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION], # [ACTION-IF-YES], [ACTION-IF-NO]) # ---------------------------------------------------------- # David Shaw > May-09-2006 # Modified by Rob to deal with curl-config linking against more libraries than # strictly necessary. # # Checks for libcurl. DEFAULT-ACTION is the string yes or no to # specify whether to default to --with-libcurl or --without-libcurl. # If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the # minimum version of libcurl to accept. Pass the version as a regular # version number like 7.10.1. If not supplied, any version is # accepted. ACTION-IF-YES is a list of shell commands to run if # libcurl was successfully found and passed the various tests. # ACTION-IF-NO is a list of shell commands that are run otherwise. # Note that using --without-libcurl does run ACTION-IF-NO. # # This macro #defines HAVE_LIBCURL if a working libcurl setup is # found, and sets @LIBCURL@ and @LIBCURL_CPPFLAGS@ to the necessary # values. Other useful defines are LIBCURL_FEATURE_xxx where xxx are # the various features supported by libcurl, and LIBCURL_PROTOCOL_yyy # where yyy are the various protocols supported by libcurl. Both xxx # and yyy are capitalized. See the list of AH_TEMPLATEs at the top of # the macro for the complete list of possible defines. Shell # variables $libcurl_feature_xxx and $libcurl_protocol_yyy are also # defined to 'yes' for those features and protocols that were found. # Note that xxx and yyy keep the same capitalization as in the # curl-config list (e.g. it's "HTTP" and not "http"). # # Users may override the detected values by doing something like: # LIBCURL="-lcurl" LIBCURL_CPPFLAGS="-I/usr/myinclude" ./configure # # For the sake of sanity, this macro assumes that any libcurl that is # found is after version 7.7.2, the first version that included the # curl-config script. Note that it is very important for people # packaging binary versions of libcurl to include this script! # Without curl-config, we can only guess what protocols are available, # or use curl_version_info to figure it out at runtime. AC_DEFUN([LIBCURL_CHECK_CONFIG], [ AH_TEMPLATE([LIBCURL_FEATURE_SSL],[Defined if libcurl supports SSL]) AH_TEMPLATE([LIBCURL_FEATURE_KRB4],[Defined if libcurl supports KRB4]) AH_TEMPLATE([LIBCURL_FEATURE_IPV6],[Defined if libcurl supports IPv6]) AH_TEMPLATE([LIBCURL_FEATURE_LIBZ],[Defined if libcurl supports libz]) AH_TEMPLATE([LIBCURL_FEATURE_ASYNCHDNS],[Defined if libcurl supports AsynchDNS]) AH_TEMPLATE([LIBCURL_FEATURE_IDN],[Defined if libcurl supports IDN]) AH_TEMPLATE([LIBCURL_FEATURE_SSPI],[Defined if libcurl supports SSPI]) AH_TEMPLATE([LIBCURL_FEATURE_NTLM],[Defined if libcurl supports NTLM]) AH_TEMPLATE([LIBCURL_PROTOCOL_HTTP],[Defined if libcurl supports HTTP]) AH_TEMPLATE([LIBCURL_PROTOCOL_HTTPS],[Defined if libcurl supports HTTPS]) AH_TEMPLATE([LIBCURL_PROTOCOL_FTP],[Defined if libcurl supports FTP]) AH_TEMPLATE([LIBCURL_PROTOCOL_FTPS],[Defined if libcurl supports FTPS]) AH_TEMPLATE([LIBCURL_PROTOCOL_FILE],[Defined if libcurl supports FILE]) AH_TEMPLATE([LIBCURL_PROTOCOL_TELNET],[Defined if libcurl supports TELNET]) AH_TEMPLATE([LIBCURL_PROTOCOL_LDAP],[Defined if libcurl supports LDAP]) AH_TEMPLATE([LIBCURL_PROTOCOL_DICT],[Defined if libcurl supports DICT]) AH_TEMPLATE([LIBCURL_PROTOCOL_TFTP],[Defined if libcurl supports TFTP]) AC_ARG_WITH(libcurl, AC_HELP_STRING([--with-libcurl=DIR],[look for the curl library in DIR]), [_libcurl_with=$withval],[_libcurl_with=ifelse([$1],,[yes],[$1])]) if test "$_libcurl_with" != "no" ; then AC_PROG_AWK _libcurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'" _libcurl_try_link=yes if test -d "$_libcurl_with" ; then LIBCURL_CPPFLAGS="-I$withval/include" _libcurl_ldflags="-L$withval/lib" AC_PATH_PROG([_libcurl_config],["$withval/bin/curl-config"]) else AC_PATH_PROG([_libcurl_config],[curl-config]) fi if test x$_libcurl_config != "x" ; then AC_CACHE_CHECK([for the version of libcurl], [libcurl_cv_lib_curl_version], [libcurl_cv_lib_curl_version=`$_libcurl_config --version | $AWK '{print $[]2}'`]) _libcurl_version=`echo $libcurl_cv_lib_curl_version | $_libcurl_version_parse` _libcurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libcurl_version_parse` if test $_libcurl_wanted -gt 0 ; then AC_CACHE_CHECK([for libcurl >= version $2], [libcurl_cv_lib_version_ok], [ if test $_libcurl_version -ge $_libcurl_wanted ; then libcurl_cv_lib_version_ok=yes else libcurl_cv_lib_version_ok=no fi ]) fi if test $_libcurl_wanted -eq 0 || test x$libcurl_cv_lib_version_ok = xyes ; then if test x"$LIBCURL_CPPFLAGS" = "x" ; then LIBCURL_CPPFLAGS=`$_libcurl_config --cflags` fi if test x"$LIBCURL" = "x" ; then # libcurl-config --libs gives a ridiculous number of libraries # check to see if we can actually link just using -lcurl LIBCURL=${LIBCURL-"$_libcurl_ldflags -lcurl"} AC_CACHE_CHECK([whether libcurl just needs -lcurl], [libcurl_cv_lib_curl_only_needs_minus_l_curl], [ _libcurl_save_cppflags=$CPPFLAGS CPPFLAGS="$LIBCURL_CPPFLAGS $CPPFLAGS" _libcurl_save_libs=$LIBS LIBS="$LIBCURL $LIBS" AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]],[[ /* Try and use a few common options to force a failure if we are missing symbols or can't link. */ int x; curl_easy_setopt(NULL,CURLOPT_URL,NULL); x=CURL_ERROR_SIZE; x=CURLOPT_WRITEFUNCTION; x=CURLOPT_FILE; x=CURLOPT_ERRORBUFFER; x=CURLOPT_STDERR; x=CURLOPT_VERBOSE; ]])],libcurl_cv_lib_curl_only_needs_minus_l_curl=yes,libcurl_cv_lib_curl_only_needs_minus_l_curl=no) CPPFLAGS=$_libcurl_save_cppflags LIBS=$_libcurl_save_libs unset _libcurl_save_cppflags unset _libcurl_save_libs ]) if test "x$libcurl_cv_lib_curl_only_needs_minus_l_curl" != xyes ; then LIBCURL=`$_libcurl_config --libs` fi # This is so silly, but Apple actually has a bug in their # curl-config script. Fixed in Tiger, but there are still # lots of Panther installs around. case "${host}" in powerpc-apple-darwin7*) LIBCURL=`echo $LIBCURL | sed -e 's|-arch i386||g'` ;; esac fi # All curl-config scripts support --feature _libcurl_features=`$_libcurl_config --feature` # Is it modern enough to have --protocols? (7.12.4) if test $_libcurl_version -ge 461828 ; then _libcurl_protocols=`$_libcurl_config --protocols` fi else _libcurl_try_link=no fi unset _libcurl_wanted fi if test $_libcurl_try_link = yes ; then # we didn't find curl-config, so let's see if the user-supplied # link line (or failing that, "-lcurl") is enough. LIBCURL=${LIBCURL-"$_libcurl_ldflags -lcurl"} AC_CACHE_CHECK([whether libcurl is usable], [libcurl_cv_lib_curl_usable], [ _libcurl_save_cppflags=$CPPFLAGS CPPFLAGS="$LIBCURL_CPPFLAGS $CPPFLAGS" _libcurl_save_libs=$LIBS LIBS="$LIBCURL $LIBS" AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]],[[ /* Try and use a few common options to force a failure if we are missing symbols or can't link. */ int x; curl_easy_setopt(NULL,CURLOPT_URL,NULL); x=CURL_ERROR_SIZE; x=CURLOPT_WRITEFUNCTION; x=CURLOPT_FILE; x=CURLOPT_ERRORBUFFER; x=CURLOPT_STDERR; x=CURLOPT_VERBOSE; ]])],libcurl_cv_lib_curl_usable=yes,libcurl_cv_lib_curl_usable=no) CPPFLAGS=$_libcurl_save_cppflags LIBS=$_libcurl_save_libs unset _libcurl_save_cppflags unset _libcurl_save_libs ]) if test $libcurl_cv_lib_curl_usable = yes ; then # Does curl_free() exist in this version of libcurl? # If not, fake it with free() _libcurl_save_cppflags=$CPPFLAGS CPPFLAGS="$CPPFLAGS $LIBCURL_CPPFLAGS" _libcurl_save_libs=$LIBS LIBS="$LIBS $LIBCURL" AC_CHECK_FUNC(curl_free,, AC_DEFINE(curl_free,free, [Define curl_free() as free() if our version of curl lacks curl_free.])) CPPFLAGS=$_libcurl_save_cppflags LIBS=$_libcurl_save_libs unset _libcurl_save_cppflags unset _libcurl_save_libs AC_DEFINE(HAVE_LIBCURL,1, [Define to 1 if you have a functional curl library.]) AC_SUBST(LIBCURL_CPPFLAGS) AC_SUBST(LIBCURL) for _libcurl_feature in $_libcurl_features ; do AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_feature_$_libcurl_feature),[1]) eval AS_TR_SH(libcurl_feature_$_libcurl_feature)=yes done if test "x$_libcurl_protocols" = "x" ; then # We don't have --protocols, so just assume that all # protocols are available _libcurl_protocols="HTTP FTP FILE TELNET LDAP DICT" if test x$libcurl_feature_SSL = xyes ; then _libcurl_protocols="$_libcurl_protocols HTTPS" # FTPS wasn't standards-compliant until version # 7.11.0 if test $_libcurl_version -ge 461568; then _libcurl_protocols="$_libcurl_protocols FTPS" fi fi fi for _libcurl_protocol in $_libcurl_protocols ; do AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_protocol_$_libcurl_protocol),[1]) eval AS_TR_SH(libcurl_protocol_$_libcurl_protocol)=yes done else unset LIBCURL unset LIBCURL_CPPFLAGS fi fi unset _libcurl_try_link unset _libcurl_version_parse unset _libcurl_config unset _libcurl_feature unset _libcurl_features unset _libcurl_protocol unset _libcurl_protocols unset _libcurl_version unset _libcurl_ldflags fi if test x$_libcurl_with = xno || test x$libcurl_cv_lib_curl_usable != xyes ; then # This is the IF-NO path ifelse([$4],,:,[$4]) else # This is the IF-YES path ifelse([$3],,:,[$3]) fi unset _libcurl_with ])dnl # ZLIB_CHECK_CONFIG ([DEFAULT-ACTION] [MINIMUM-VERSION], # [ACTION-IF-YES], [ACTION-IF-NO]) # AC_DEFUN([ZLIB_CHECK_CONFIG], [ AC_ARG_WITH(zlib, AC_HELP_STRING([--with-zlib=DIR],[look for zlib in DIR]), [_zlib_with=$withval],[_zlib_with="no"]) ZLIB_ROOT="" if test "$_zlib_with" != "no" then if test -f "$_zlib_with/include/zlib.h" then ZLIB_ROOT=$_zlib_with fi fi # Check if it's a working library zlib_ok=no if test "$ZLIB_ROOT" != "" then _cppflags=$CPPFLAGS CPPFLAGS="$CPPFLAGS -I${ZLIB_ROOT}/include" _ldflags=$LDFLAGS LDFLAGS="$LDFLAGS -L${ZLIB_ROOT}/lib" AC_LANG_SAVE AC_LANG_C AC_CHECK_LIB(z, inflateEnd, [AC_CHECK_HEADER(zlib.h, zlib_ok=yes, zlib_ok=no)]) AC_LANG_RESTORE if test "$zlib_ok" != "yes" then # Backout and whinge CPPFLAGS=$_cppflags LDFLAGS=$_ldflags AC_MSG_WARN("--with-zlib specified, but non functioning") fi else # Maybe it works "out of the box"? AC_CHECK_LIB(z, inflateEnd, [AC_CHECK_HEADER(zlib.h, zlib_ok=yes, zlib_ok=no)]) fi if test "$zlib_ok" = "yes" then AC_DEFINE(HAVE_ZLIB, 1, [Define to 1 if you have a functional libz.]) if test "$ZLIB_ROOT" != "" then LIBZ="-L${ZLIB_ROOT}/lib -lz" else LIBZ=-lz fi AC_SUBST(LIBZ) else AC_MSG_WARN("No functioning zlib found") fi # Not sure how many of these are needed, but it's belt-and-braces mode AH_TEMPLATE([HAVE_ZLIB], [Define if zlib is installed]) AM_CONDITIONAL(HAVE_ZLIB, test "$zlib_ok" = "yes") ]) dnl @synopsis VL_PROG_CC_WARNINGS([ANSI]) dnl dnl From http://ac-archive.sourceforge.net/ac-archive/vl_prog_cc_warnings.html dnl dnl Enables a reasonable set of warnings for the C compiler. dnl Optionally, if the first argument is nonempty, turns on flags which dnl enforce and/or enable proper ANSI C if such are known with the dnl compiler used. dnl dnl Currently this macro knows about GCC, Solaris C compiler, Digital dnl Unix C compiler, C for AIX Compiler, HP-UX C compiler, IRIX C dnl compiler, NEC SX-5 (Super-UX 10) C compiler, and Cray J90 (Unicos dnl 10.0.0.8) C compiler. dnl dnl @category C dnl @author Ville Laurikari dnl Updated by Rob Davies dnl @version 2002-04-04 dnl @license AllPermissive dnl Copying and distribution of this file, with or without modification, dnl are permitted in any medium without royalty provided the copyright notice dnl and this notice are preserved. Users of this software should generally dnl follow the principles of the MIT License including its disclaimer. dnl Original Copyright (c) Ville Laurikari 2002 dnl Modifications Copyright (c) Genome Research Limited 2015 AC_DEFUN([VL_PROG_CC_WARNINGS], [ AC_ARG_ENABLE([warnings], [AS_HELP_STRING([--disable-warnings], [turn off compiler warnings])], [], [enable_warnings=yes]) AS_IF([test "x$enable_warnings" != xno],[ AC_PROG_GREP ansi="$1" AS_IF([test "x$ansi" = "x"], [msg="for C compiler warning flags"], [msg="for C compiler warning and ANSI conformance flags"]) AC_CACHE_CHECK($msg, vl_cv_prog_cc_warnings, [ vl_cv_prog_cc_warnings="" AS_IF([test "x$CC" != "x"],[ cat > conftest.c <&1 | $GREP -i "WorkShop" > /dev/null 2>&1 && "$CC" -c -v -Xc conftest.c > /dev/null 2>&1 && test -f conftest.o],[ AS_IF([test "x$ansi" = "x"], [vl_cv_prog_cc_warnings="-v"], [vl_cv_prog_cc_warnings="-v -Xc"]) ], dnl Digital Unix C compiler ["$CC" -V 2>&1 | $GREP -i "Digital UNIX Compiler" > /dev/null 2>&1 && "$CC" -c -verbose -w0 -warnprotos -std1 conftest.c > /dev/null 2>&1 && test -f conftest.o], [ AS_IF([test "x$ansi" = "x"], [vl_cv_prog_cc_warnings="-verbose -w0 -warnprotos"], [vl_cv_prog_cc_warnings="-verbose -w0 -warnprotos -std1"]) ], dnl C for AIX Compiler ["$CC" 2>&1 | $GREP -i "C for AIX Compiler" > /dev/null 2>&1 && "$CC" -c -qlanglvl=ansi -qinfo=all conftest.c > /dev/null 2>&1 && test -f conftest.o],[ AS_IF([test "x$ansi" = "x"], [vl_cv_prog_cc_warnings="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd"], [vl_cv_prog_cc_warnings="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd -qlanglvl=ansi"]) ], dnl IRIX C compiler ["$CC" -version 2>&1 | $GREP -i "MIPSpro Compilers" > /dev/null 2>&1 && "$CC" -c -fullwarn -ansi -ansiE conftest.c > /dev/null 2>&1 && test -f conftest.o],[ AS_IF([test "x$ansi" = "x"], [vl_cv_prog_cc_warnings="-fullwarn"], [vl_cv_prog_cc_warnings="-fullwarn -ansi -ansiE"]) ], dnl HP-UX C compiler [what "$CC" 2>&1 | $GREP -i "HP C Compiler" > /dev/null 2>&1 && "$CC" -c -Aa +w1 conftest.c > /dev/null 2>&1 && test -f conftest.o],[ AS_IF([test "x$ansi" = "x"], [vl_cv_prog_cc_warnings="+w1"], [vl_cv_prog_cc_warnings="+w1 -Aa"]) ], dnl The NEC SX-5 (Super-UX 10) C compiler ["$CC" -V 2>&1 | $GREP "/SX" > /dev/null 2>&1 && "$CC" -c -pvctl[,]fullmsg -Xc conftest.c > /dev/null 2>&1 && test -f conftest.o],[ AS_IF([test "x$ansi" = "x"], [vl_cv_prog_cc_warnings="-pvctl[,]fullmsg"], [vl_cv_prog_cc_warnings="-pvctl[,]fullmsg -Xc"]) ], dnl The Cray C compiler (Unicos) ["$CC" -V 2>&1 | $GREP -i "Cray" > /dev/null 2>&1 && "$CC" -c -h msglevel 2 conftest.c > /dev/null 2>&1 && test -f conftest.o],[ AS_IF([test "x$ansi" = "x"], [vl_cv_prog_cc_warnings="-h msglevel 2"], [vl_cv_prog_cc_warnings="-h msglevel 2 -h conform"]) ]) rm -f conftest.* ]) ]) AS_IF([test "x$vl_cv_prog_cc_warnings" != "x"], [CFLAGS="$vl_cv_prog_cc_warnings $CFLAGS"]) ]) ])dnl