From 8b6cf239a383b928208e99239d0ab45f99ae4daa Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 25 Mar 2003 22:40:43 +0000
Subject: attempt to extract openssl information using pkg-config

---
 configure.ac | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/configure.ac b/configure.ac
index ec3dac746..fcb9ab731 100644
--- a/configure.ac
+++ b/configure.ac
@@ -452,6 +452,31 @@ else
   AC_MSG_RESULT(no)
 fi
 
+dnl Detect the pkg-config tool, as it may have extra info about the
+dnl openssl installation we can use. I *believe* this is what we are
+dnl expected to do on really recent Redhat Linux hosts.
+AC_PATH_PROG( PKGCONFIG, pkg-config, no, $PATH:/usr/bin:/usr/local/bin)
+if test "$PKGCONFIG" != "no" ; then
+  AC_MSG_CHECKING([for OpenSSL options using pkg-config])
+
+  $PKGCONFIG --exists openssl
+  SSL_EXISTS=$?
+
+  if test "$SSL_EXISTS" -eq "0"; then
+    SSL_LIBS=`$PKGCONFIG --libs-only-l openssl 2>/dev/null`
+    SSL_LDFLAGS=`$PKGCONFIG --libs-only-L openssl 2>/dev/null`
+    SSL_CFLAGS=`$PKGCONFIG --cflags openssl 2>/dev/null`
+
+    LIBS="$LIBS $SSL_LIBS"
+    CFLAGS="$CFLAGS $SSL_CFLAGS"
+    LDFLAGS="$LDFLAGS $SSL_LDFLAGS"
+
+    AC_MSG_RESULT([yes])
+  else
+    AC_MSG_RESULT([no])
+  fi
+
+fi
 
 dnl **********************************************************************
 dnl Check for the presence of SSL libraries and headers
-- 
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