diff --git a/htop-stdgnu.patch b/htop-stdgnu.patch
new file mode 100644
index 0000000..b3076da
--- /dev/null
+++ b/htop-stdgnu.patch
@@ -0,0 +1,138 @@
+--- htop-1.0.2.orig/configure.ac
++++ htop-1.0.2/configure.ac
+@@ -1,11 +1,12 @@
+ #                                               -*- Autoconf -*-
+ # Process this file with autoconf to produce a configure script.
+ 
+-AC_PREREQ(2.65)
++AC_PREREQ([2.60])
+ AC_INIT([htop],[1.0.2],[loderunner@users.sourceforge.net])
+ 
+ # The following two lines are required by hwloc scripts
+ AC_USE_SYSTEM_EXTENSIONS
++AC_SYS_LARGEFILE
+ AC_CANONICAL_TARGET
+ 
+ AM_INIT_AUTOMAKE([1.11])
+@@ -14,15 +15,15 @@ AC_CONFIG_HEADER([config.h])
+ AC_CONFIG_MACRO_DIR([m4])
+ 
+ # Checks for programs.
+-AC_PROG_CC
++AC_PROG_CC_STDC
+ AM_PROG_CC_C_O
+ 
+-AC_DISABLE_SHARED
+-AC_ENABLE_STATIC
+-AC_PROG_LIBTOOL
++#AC_DISABLE_SHARED
++#AC_ENABLE_STATIC
++#LT_INIT
+ 
+-# Checks for libraries.
+-AC_CHECK_LIB([m], [ceil], [], [missing_libraries="$missing_libraries libm"])
++
++AC_SEARCH_LIBS([ceil], [m])
+ 
+ # Checks for header files.
+ AC_HEADER_DIRENT
+@@ -30,7 +31,7 @@ AC_HEADER_STDC
+ AC_CHECK_HEADERS([stdlib.h string.h strings.h sys/param.h sys/time.h unistd.h curses.h],[:],[
+   missing_headers="$missing_headers $ac_header"
+ ])
+-AC_CHECK_HEADERS([execinfo.h],[:],[:])
++AC_CHECK_HEADERS_ONCE([execinfo.h])
+ 
+ # Checks for typedefs, structures, and compiler characteristics.
+ AC_HEADER_STDBOOL
+@@ -40,17 +41,9 @@ AC_TYPE_UID_T
+ 
+ # Checks for library functions.
+ AC_FUNC_CLOSEDIR_VOID
+-AC_TYPE_SIGNAL
+-AC_FUNC_STAT
+-AC_CHECK_FUNCS([memmove strncasecmp strstr strdup])
+ 
+-save_cflags="${CFLAGS}"
+-CFLAGS="${CFLAGS} -std=c99"
+-AC_MSG_CHECKING([whether gcc -std=c99 option works])
+-AC_TRY_COMPILE(AC_INCLUDES_DEFAULT, [char *a; a = strdup("foo"); int i = 0; i++; // C99],
+-   AC_MSG_RESULT([yes]),
+-   AC_MSG_ERROR([htop is written in C99. A newer version of gcc is required.]))
+-CFLAGS="$save_cflags"
++AC_FUNC_STAT
++AC_CHECK_FUNCS_ONCE([memmove strncasecmp strstr strdup])
+ 
+ PROCDIR=/proc
+ AC_ARG_WITH(proc, [  --with-proc=DIR      Location of a Linux-compatible proc filesystem (default=/proc).],
+@@ -61,33 +54,33 @@ AC_ARG_WITH(proc, [  --with-proc=DIR
+    fi,
+    AC_DEFINE(PROCDIR, "/proc", [Path of proc filesystem]))
+ 
+-AC_ARG_ENABLE(openvz, [AC_HELP_STRING([--enable-openvz], [enable OpenVZ support])], ,enable_openvz="no")
++AC_ARG_ENABLE(openvz, [AS_HELP_STRING([--enable-openvz],[enable OpenVZ support])], ,enable_openvz="no")
+ if test "x$enable_openvz" = xyes; then
+    AC_DEFINE(HAVE_OPENVZ, 1, [Define if openvz support enabled.])
+ fi
+ 
+-AC_ARG_ENABLE(cgroup, [AC_HELP_STRING([--enable-cgroup], [enable cgroups support])], ,enable_cgroup="no")
++AC_ARG_ENABLE(cgroup, [AS_HELP_STRING([--enable-cgroup],[enable cgroups support])], ,enable_cgroup="no")
+ if test "x$enable_cgroup" = xyes; then
+    AC_DEFINE(HAVE_CGROUP, 1, [Define if cgroup support enabled.])
+ fi
+ 
+-AC_ARG_ENABLE(vserver, [AC_HELP_STRING([--enable-vserver], [enable VServer support])], ,enable_vserver="no")
++AC_ARG_ENABLE(vserver, [AS_HELP_STRING([--enable-vserver],[enable VServer support])], ,enable_vserver="no")
+ if test "x$enable_vserver" = xyes; then
+     AC_DEFINE(HAVE_VSERVER, 1, [Define if vserver support enabled.])
+ fi
+ 
+-AC_ARG_ENABLE(ancient_vserver, [AC_HELP_STRING([--enable-ancient-vserver], [enable ancient VServer support (implies --enable-vserver)])], ,enable_ancient_vserver="no")
++AC_ARG_ENABLE(ancient_vserver, [AS_HELP_STRING([--enable-ancient-vserver],[enable ancient VServer support (implies --enable-vserver)])], ,enable_ancient_vserver="no")
+ if test "x$enable_ancient_vserver" = xyes; then
+     AC_DEFINE(HAVE_VSERVER, 1, [Define if vserver support enabled.])
+     AC_DEFINE(HAVE_ANCIENT_VSERVER, 1, [Define if ancient vserver support enabled.])
+ fi
+ 
+-AC_ARG_ENABLE(taskstats, [AC_HELP_STRING([--enable-taskstats], [enable per-task IO Stats (taskstats kernel sup required)])], ,enable_taskstats="yes")
++AC_ARG_ENABLE(taskstats, [AS_HELP_STRING([--enable-taskstats],[enable per-task IO Stats (taskstats kernel sup required)])], ,enable_taskstats="yes")
+ if test "x$enable_taskstats" = xyes; then
+     AC_DEFINE(HAVE_TASKSTATS, 1, [Define if taskstats support enabled.])
+ fi
+ 
+-AC_ARG_ENABLE(unicode, [AC_HELP_STRING([--enable-unicode], [enable Unicode support])], ,enable_unicode="yes")
++AC_ARG_ENABLE(unicode, [AS_HELP_STRING([--enable-unicode],[enable Unicode support])], ,enable_unicode="yes")
+ if test "x$enable_unicode" = xyes; then
+    AC_CHECK_LIB([ncursesw], [refresh], [], [
+       missing_libraries="$missing_libraries libncursesw"
+@@ -113,7 +106,7 @@ AC_CHECK_FILE($PROCDIR/stat,,AC_MSG_ERRO
+ AC_CHECK_FILE($PROCDIR/meminfo,,AC_MSG_ERROR(Cannot find /proc/meminfo. Make sure you have a Linux-compatible /proc filesystem mounted. See the file README for help.))
+ fi
+ 
+-AC_ARG_ENABLE(native_affinity, [AC_HELP_STRING([--enable-native-affinity], [enable native sched_setaffinity and sched_getaffinity for affinity support, disables hwloc])], ,enable_native_affinity="yes")
++AC_ARG_ENABLE(native_affinity, [AS_HELP_STRING([--enable-native-affinity],[enable native sched_setaffinity and sched_getaffinity for affinity support, disables hwloc])], ,enable_native_affinity="yes")
+ if test "x$enable_native_affinity" = xyes -a "x$cross_compiling" = xno; then
+    AC_MSG_CHECKING([for usable sched_setaffinity])
+    AC_RUN_IFELSE([
+@@ -134,7 +127,7 @@ if test "x$enable_native_affinity" = xye
+    AC_DEFINE(HAVE_NATIVE_AFFINITY, 1, [Define if native sched_setaffinity and sched_getaffinity are to be used.])
+ fi
+ 
+-AC_ARG_ENABLE(hwloc, [AC_HELP_STRING([--enable-hwloc], [enable hwloc support for CPU affinity])],, enable_hwloc="no")
++AC_ARG_ENABLE(hwloc, [AS_HELP_STRING([--enable-hwloc],[enable hwloc support for CPU affinity])],, enable_hwloc="no")
+ if test "x$enable_hwloc" = xyes
+ then
+    AC_CHECK_LIB([hwloc], [hwloc_linux_get_tid_cpubind], [], [missing_libraries="$missing_libraries libhwloc"])
+--- htop-1.0.2.orig/Makefile.am
++++ htop-1.0.2/Makefile.am
+@@ -10,8 +10,8 @@ applications_DATA = htop.desktop
+ pixmapdir = $(datadir)/pixmaps
+ pixmap_DATA = htop.png
+ 
+-htop_CFLAGS = -pedantic -Wall -Wextra -std=c99 -rdynamic -D_XOPEN_SOURCE_EXTENDED -DSYSCONFDIR=\"$(sysconfdir)\"
+-AM_CPPFLAGS = -DNDEBUG
++htop_CFLAGS = -Wall -Wextra -DSYSCONFDIR=\"$(sysconfdir)\"
++AM_CPPFLAGS = -include config.h -DNDEBUG
+ 
+ myhtopsources = AvailableMetersPanel.c CategoriesPanel.c CheckItem.c \
+ ClockMeter.c ColorsPanel.c ColumnsPanel.c CPUMeter.c CRT.c \
diff --git a/htop.changes b/htop.changes
index 57f1a43..13175cd 100644
--- a/htop.changes
+++ b/htop.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Thu Dec 26 21:02:27 UTC 2013 - crrodriguez@opensuse.org
+
+- improve autools build, we do not want packages 
+  using, for example std=c99, instead determine the
+  latest C standard with gnu extensions using autoconf macros.
+  (htop-stdgnu.patch)
+
 -------------------------------------------------------------------
 Tue Nov 26 13:28:46 UTC 2013 - jengelh@inai.de
 
diff --git a/htop.spec b/htop.spec
index 02eded4..0ca78d5 100644
--- a/htop.spec
+++ b/htop.spec
@@ -26,7 +26,9 @@ Url:            http://htop.sourceforge.net
 
 Source0:        %{name}-%{version}.tar.gz
 Patch0:         htop-desktop-file-fix-thoenig-01.patch
+Patch1:         htop-stdgnu.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
+BuildRequires:  automake
 BuildRequires:  ncurses-devel
 BuildRequires:  python
 BuildRequires:  update-desktop-files
@@ -48,10 +50,12 @@ Authors:
 %prep
 %setup
 %patch0 -p0
+%patch1 -p1
 
 %build
 export CFLAGS="%{optflags} `ncursesw6-config --cflags`"
 export LDFLAGS="`ncursesw6-config --libs`"
+autoreconf -fiv
 %configure \
     --enable-unicode \
 	--enable-taskstats \