Linux compatibility

configure.ac

@@ -1,14 +1,42 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.69])
 AC_INIT([sermon], [0.9], [david.a.baer@gmail.com])
 AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+AC_CONFIG_SRCDIR([config.h.in])
+AC_CONFIG_HEADERS([config.h])
+
+# Checks for programs.
 AC_PROG_CC
 AC_PROG_LEX
 AC_PROG_YACC
+
+# Checks for libraries.
 PKG_CHECK_MODULES([libxml2], [libxml-2.0])
 PKG_CHECK_MODULES([libxslt], [libxslt])
-AC_CONFIG_HEADERS([config.h])
-AC_CONFIG_FILES([
-  Makefile
-  src/Makefile
-  data/Makefile
-])
+AC_CHECK_LIB([bsd], [strlcpy], [ PKG_CHECK_MODULES([libbsd], [libbsd]) ])
+
+# Checks for header files.
+AC_FUNC_ALLOCA
+AC_CHECK_HEADERS([inttypes.h libintl.h limits.h malloc.h stddef.h stdint.h stdlib.h string.h unistd.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_INLINE
+AC_TYPE_INT16_T
+AC_TYPE_INT32_T
+AC_TYPE_INT8_T
+AC_TYPE_SIZE_T
+AC_TYPE_UINT16_T
+AC_TYPE_UINT32_T
+AC_TYPE_UINT8_T
+
+# Checks for library functions.
+AC_FUNC_MALLOC
+AC_FUNC_REALLOC
+AC_CHECK_FUNCS([memset realpath strdup strndup])
+
+AC_CONFIG_FILES([Makefile
+                 data/Makefile
+                 src/Makefile])
 AC_OUTPUT