ModSecurity/apache2/build/find_curl.m4

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dnl Check for CURL Libraries
dnl CHECK_CURL(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
dnl Sets:
dnl CURL_CFLAGS
dnl CURL_LIBS
CURL_CONFIG=""
CURL_CFLAGS=""
CURL_LIBS=""
CURL_MIN_VERSION="7.15.1"
AC_DEFUN([CHECK_CURL],
[dnl
AC_ARG_WITH(
curl,
[AC_HELP_STRING([--with-curl=PATH],[Path to curl prefix or config script])],
[test_paths="${with_curl}"],
[test_paths="/usr/local/libcurl /usr/local/curl /usr/local /opt/libcurl /opt/curl /opt /usr"])
AC_MSG_CHECKING([for libcurl config script])
for x in ${test_paths}; do
dnl # Determine if the script was specified and use it directly
if test ! -d "$x" -a -e "$x"; then
CURL_CONFIG="`basename $x`"
curl_path=`echo $x | sed "s/\/\?${CURL_CONFIG}\$//"`
break
fi
dnl # Try known config script names/locations
for CURL_CONFIG in curl-config; do
if test -e "${x}/bin/${CURL_CONFIG}"; then
curl_path="${x}/bin"
break
elif test -e "${x}/${CURL_CONFIG}"; then
curl_path="${x}"
break
else
curl_path=""
fi
done
if test -n "$curl_path"; then
break
fi
done
if test -n "${curl_path}"; then
CURL_CONFIG="${curl_path}/${CURL_CONFIG}"
AC_MSG_RESULT([${CURL_CONFIG}])
CURL_CFLAGS="`${CURL_CONFIG} --cflags`"
if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(curl CFLAGS: $CURL_CFLAGS); fi
CURL_LIBS="`${CURL_CONFIG} --libs`"
if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(curl LIBS: $CURL_LIBS); fi
CURL_VERSION=`${CURL_CONFIG} --version | sed 's/^[[^0-9]][[^[:space:]]][[^[:space:]]]*[[[:space:]]]*//'`
if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(curl VERSION: $CURL_VERSION); fi
CFLAGS=$save_CFLAGS
LDFLAGS=$save_LDFLAGS
dnl # Check version is ok
AC_MSG_CHECKING([if libcurl is at least v${CURL_MIN_VERSION}])
curl_min_ver=`echo ${CURL_MIN_VERSION} | awk -F. '{print (\$ 1 * 1000000) + (\$ 2 * 1000) + \$ 3}'`
curl_ver=`echo ${CURL_VERSION} | awk -F. '{print (\$ 1 * 1000000) + (\$ 2 * 1000) + \$ 3}'`
if test "$curl_min_ver" -le "$curl_ver"; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
AC_MSG_NOTICE([NOTE: curl library may be too old: $CURL_VERSION])
fi
else
AC_MSG_RESULT([no])
fi
AC_SUBST(CURL_LIBS)
AC_SUBST(CURL_CFLAGS)
if test -z "${CURL_LIBS}"; then
AC_MSG_NOTICE([*** curl library not found.])
ifelse([$2], , AC_MSG_NOTICE([NOTE: curl library is only required for building mlogc]), $2)
else
AC_MSG_NOTICE([using '${CURL_LIBS}' for curl Library])
ifelse([$1], , , $1)
fi
])