From 38f0428c42094507427668d70095f61988f86b31 Mon Sep 17 00:00:00 2001
From: Georg Hopp <georg@steffers.org>
Date: Wed, 21 Oct 2015 07:25:26 +0200
Subject: [PATCH] Check existence of required tr headers

---
 .gitignore   |  2 --
 configure.ac | 14 ++++++++++++--
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
index ba44cd4..0f3bd91 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,5 +39,3 @@ gmon.out
 test-driver
 /assets/html/_documentation.html
 tags
-trdata.h
-trdata.h.in
diff --git a/configure.ac b/configure.ac
index 9c0c695..2384ab8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -12,7 +12,7 @@ AM_SILENT_RULES([yes])
 AC_COPYRIGHT([Copyright © 2013 Georg Hopp])
 AC_REVISION([0.0.0])
 AC_CONFIG_SRCDIR([src/tree/tree.c])
-AC_CONFIG_HEADERS([trdata.h])
+AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_MACRO_DIR([m4])
 
 m4_include([m4/gcov.m4])
@@ -37,7 +37,17 @@ AM_COND_IF([HAVE_DOXYGEN],
 	   [AC_CONFIG_FILES([docs/Doxyfile])])
 
 # Checks for header files.
-AC_CHECK_HEADERS([stdarg.h string.h stdlib.h stdio.h unistd.h syslog.h sys/types.h])
+AC_CHECK_HEADERS([stdarg.h string.h stdlib.h stdio.h unistd.h syslog.h \
+		  sys/types.h])
+AC_CHECK_HEADER(trbase.h, [], [
+	AC_MSG_ERROR([unable to find the trbase header])
+])
+AC_CHECK_HEADER(trio.h, [], [
+	AC_MSG_ERROR([unable to find the trio header])
+])
+AC_CHECK_HEADER(trhash.h, [], [
+	AC_MSG_ERROR([unable to find the trhash header])
+])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_HEADER_STDBOOL