X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=configure.ac;h=3c2311b6f15e673d47492d8cec5ea2ed973035bb;hp=9992133f5c603b2679de92ca47a02a1a8d019dd8;hb=ab655d5afacd562f817cfc4ca821ab61c7de2188;hpb=d266da8d47161d02ddd068f7f5b9acfabe92a192

diff --git a/configure.ac b/configure.ac
index 9992133f..3c2311b6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,7 +18,7 @@ AC_CONFIG_AUX_DIR([config])
 AC_CONFIG_HEADERS([config/config.h])
 AC_CONFIG_MACRO_DIR([m4])
 dnl This defines PACKAGE and VERSION.
-AM_INIT_AUTOMAKE([gnu 1.8 dist-bzip2])
+AM_INIT_AUTOMAKE([gnu 1.8 dist-bzip2 subdir-objects])
 
 dnl libtool versioning
 LT_VERSION_INFO="ginac_lt_current:ginac_lt_revision:ginac_lt_age"
@@ -39,6 +39,7 @@ AS_IF([test -z "$YACCEXE" -a ! -f $srcdir/ginsh/ginsh_parser.hpp],
 
 dnl Switch to C++ language mode for the following libraries and headers.
 AC_LANG([C++])
+AX_CXX_COMPILE_STDCXX([11])
 
 dnl Make sure all the necessary standard headers are installed on the system.
 GINAC_STD_CXX_HEADERS
@@ -54,10 +55,6 @@ dnl actually works
 GINACLIB_LIBS='-L${libdir} -lginac'
 AC_LIB_LINKFLAGS_FROM_LIBS([GINACLIB_RPATH], [$GINACLIB_LIBS])
 
-dnl Check for data types which are needed by the hash function 
-dnl (golden_ratio_hash).
-AC_CHECK_TYPE(long long)
-
 dnl Check for stuff needed for building the GiNaC interactive shell (ginsh).
 AC_CHECK_HEADERS(unistd.h)
 GINAC_HAVE_RUSAGE