From 53c994825c1e328c272c84c1792567d8fb4823ec Mon Sep 17 00:00:00 2001
From: Badlop <badlop@process-one.net>
Date: Wed, 9 Jul 2008 21:33:34 +0000
Subject: [PATCH] * src/configure.ac: Check for erlang header files (EJAB-232)
 * src/configure: Likewise

SVN Revision: 1429
---
 ChangeLog        |   3 ++
 src/configure    | 136 +++++++++++++++++++++++++++++++++++++++++++++++
 src/configure.ac |   3 ++
 3 files changed, 142 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 4ff1c0d8e..3053503d8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2008-07-09  Badlop  <badlop@process-one.net>
 
+	* src/configure.ac: Check for erlang header files (EJAB-232)
+	* src/configure: Likewise
+
 	* src/mod_pubsub/mod_pubsub.erl: Fix compilator warnings
 
 	* src/mod_muc/mod_muc_log.erl: Fix XHTML compliance: ensure some
diff --git a/src/configure b/src/configure
index b874f6cab..d5927b6c1 100755
--- a/src/configure
+++ b/src/configure
@@ -4755,6 +4755,142 @@ _ACEOF
 fi
 
 
+# Check Erlang headers are installed
+if test "${ac_cv_header_erl_driver_h+set}" = set; then
+  { echo "$as_me:$LINENO: checking for erl_driver.h" >&5
+echo $ECHO_N "checking for erl_driver.h... $ECHO_C" >&6; }
+if test "${ac_cv_header_erl_driver_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_header_erl_driver_h" >&5
+echo "${ECHO_T}$ac_cv_header_erl_driver_h" >&6; }
+else
+  # Is the header compilable?
+{ echo "$as_me:$LINENO: checking erl_driver.h usability" >&5
+echo $ECHO_N "checking erl_driver.h usability... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <erl_driver.h>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_header_compiler=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ echo "$as_me:$LINENO: checking erl_driver.h presence" >&5
+echo $ECHO_N "checking erl_driver.h presence... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <erl_driver.h>
+_ACEOF
+if { (ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+
+rm -f conftest.err conftest.$ac_ext
+{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: erl_driver.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: erl_driver.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: erl_driver.h: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: erl_driver.h: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: erl_driver.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: erl_driver.h: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: erl_driver.h:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: erl_driver.h:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: erl_driver.h: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: erl_driver.h: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: erl_driver.h:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: erl_driver.h:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: erl_driver.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: erl_driver.h: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: erl_driver.h: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: erl_driver.h: in the future, the compiler will take precedence" >&2;}
+
+    ;;
+esac
+{ echo "$as_me:$LINENO: checking for erl_driver.h" >&5
+echo $ECHO_N "checking for erl_driver.h... $ECHO_C" >&6; }
+if test "${ac_cv_header_erl_driver_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_header_erl_driver_h=$ac_header_preproc
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_header_erl_driver_h" >&5
+echo "${ECHO_T}$ac_cv_header_erl_driver_h" >&6; }
+
+fi
+if test $ac_cv_header_erl_driver_h = yes; then
+  :
+else
+  { { echo "$as_me:$LINENO: error: cannot find Erlang header files" >&5
+echo "$as_me: error: cannot find Erlang header files" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+
+
 # Change default prefix
 
 
diff --git a/src/configure.ac b/src/configure.ac
index a3e8894e9..2c0454901 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -26,6 +26,9 @@ AM_WITH_PAM
 # Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
 
+# Check Erlang headers are installed
+AC_CHECK_HEADER(erl_driver.h,,[AC_MSG_ERROR([cannot find Erlang header files])])
+
 # Change default prefix
 AC_PREFIX_DEFAULT(/)