build: fix compiling on older distributions

data-tiering is disabled on RHEL-5 because it depends on a too new
SQLite version.

This change also prevents installing some of files that are used by
geo-replication, which is also not available on RHEL-5. geo-replication
depends on a too recent version of Python.

Due to an older version of OpenSSL, some of the newer functions can not
be used. A fallback to previous functions is done. Unfortunately RHEL-5
does not seem to have TLSv1.2 support, so only older versions can be
used.

Cherry picked from commit 0209b18fd65f9df5ebd0a8764ebf864d0d392998:
> Change-Id: I672264a673f5432358d2e83b17e2a34efd9fd913
> BUG: 1222317
> Signed-off-by: Niels de Vos <ndevos@redhat.com>
> Reviewed-on: http://review.gluster.org/10803
> Tested-by: NetBSD Build System <jenkins@build.gluster.org>
> Tested-by: Gluster Build System <jenkins@build.gluster.com>
> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
> Reviewed-by: Vijay Bellur <vbellur@redhat.com>

Also including the changes from http://review.gluster.org/11140:

> build: improve detection of new OpenSSL features
>
> Building on Mac OS X revealed that the current check for
> CRYPTO_THREADID_set_callback() availability in OpenSSL is not correct.
>
> There also does not seem to be a guarantee that TLSv1_2_method() is
> available when TLS1_2_VERSION is #define'd.
>
> Change-Id: I21508065fc181a1c74bee4fd6d23bb5bdf7cea7a
> BUG: 1222317
> Reviewed-on: http://review.gluster.org/11140
> Original-author: Kaleb KEITHLEY <kkeithle@redhat.com>
> Signed-off-by: Niels de Vos <ndevos@redhat.com>

Change-Id: I672264a673f5432358d2e83b17e2a34efd9fd913
BUG: 1228510
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/11096
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>

1 files changed, 31 insertions, 19 deletions

diff --git a/configure.ac b/configure.ac
index 1a09854224b..a93c1cd6de3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -388,14 +388,7 @@ AC_CHECK_HEADERS([sys/ioctl.h], AC_DEFINE(HAVE_IOCTL_IN_SYS_IOCTL_H, 1, [have sy
 AC_CHECK_HEADERS([sys/extattr.h])
 
 dnl Math library
-case $host_os in
-     linux*)
-        MATH_LIB=''
-        ;;
-     *)
-        MATH_LIB='-lm'
-        ;;
-esac
+AC_CHECK_LIB([m], [pow], [MATH_LIB='-lm'], [MATH_LIB=''])
 AC_SUBST(MATH_LIB)
 
 dnl use libuuid.so or fall-back to contrib/uuid
@@ -406,6 +399,16 @@ PKG_CHECK_MODULES([UUID], [uuid],
         [HAVE_LIBUUID=no
          UUID_CFLAGS='-I$(CONTRIBDIR)/uuid'])
 AM_CONDITIONAL([HAVE_LIBUUID], [test x$HAVE_LIBUUID = xyes])
+
+dnl older version of libuuid (from e2fsprogs) require including uuid/uuid.h
+saved_CFLAGS=${CFLAGS}
+CFLAGS="${CFLAGS} ${UUID_CFLAGS}"
+AC_CHECK_HEADER([uuid.h], [], [AC_CHECK_HEADER([uuid/uuid.h])])
+CFLAGS=${saved_CFLAGS}
+if test "x$ac_cv_header_uuid_uuid_h" = "xyes"; then
+    UUID_CFLAGS="${UUID_CFLAGS} -I$(pkg-config --variable=includedir uuid)/uuid"
+fi
+
 dnl libglusterfs needs uuid.h, practically everything depends on it
 GF_CPPFLAGS="${GF_CPPFLAGS} ${UUID_CFLAGS}"
 dnl PKGCONFIG_UUID is used for the dependency in *.pc.in files
@@ -530,6 +533,11 @@ fi
 
 AM_CONDITIONAL([ENABLE_BD_XLATOR], [test x$BUILD_BD_XLATOR = xyes])
 
+dnl check for old openssl
+AC_CHECK_LIB([crypto], CRYPTO_THREADID_set_callback, [AC_DEFINE([HAVE_CRYPTO_THREADID], [1], [use new OpenSSL functions])])
+
+AC_CHECK_LIB([ssl], TLSv1_2_method, [AC_DEFINE([HAVE_TLSV1_2_METHOD], [1], [use new OpenSSL functions])])
+
 # start encryption/crypt section
 
 AC_CHECK_HEADERS([openssl/cmac.h], [have_cmac_h=yes], [have_cmac_h=no])
@@ -705,6 +713,7 @@ if test "x$enable_georeplication" != "xno"; then
   GEOREP_EXTRAS_SUBDIR=geo-rep
 fi
 AC_SUBST(GEOREP_EXTRAS_SUBDIR)
+AM_CONDITIONAL(USE_GEOREP, test "x$enable_georeplication" != "xno")
 
 # CDC xlator - check if libz is present if so enable HAVE_LIB_Z
 BUILD_CDC=yes
@@ -808,11 +817,8 @@ AC_SUBST(HAVE_BACKTRACE)
 
 if test "x${have_backtrace}" != "xyes"; then
 AC_TRY_COMPILE([#include <math.h>], [double x=0.0; x=ceil(0.0);],
-   [have_math_h=yes],
+   [],
    AC_MSG_ERROR([need math library for libexecinfo]))
-if test "x${have_math_h}" = "xyes"; then
-   LIBS="$LIBS -lm"
-fi
 fi
 
 dnl glusterfs prints memory usage to stderr by sending it SIGUSR1
@@ -905,26 +911,29 @@ GF_HOST_OS=""
 GF_LDFLAGS="-rdynamic"
 
 dnl check for gcc -Werror=format-security
-saved_GF_CFLAGS="-Wformat -Werror=format-security"
+saved_CFLAGS=$CFLAGS
+CFLAGS="-Wformat -Werror=format-security"
 AC_MSG_CHECKING([whether $CC accepts -Werror=format-security])
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [cc_werror_format_security=yes], [cc_werror_format_security=no])
 echo $cc_werror_format_security
 if test "x$cc_werror_format_security" = "xno"; then
-    GF_CFLAGS="$GF_CFLAGS"
+    CFLAGS="$saved_CFLAGS"
 else
-    GF_CFLAGS="$saved_GF_CFLAGS $GF_CFLAGS"
+    CFLAGS="$saved_CFLAGS $CFLAGS"
+    GF_CFLAGS="$GF_CFLAGS $CFLAGS"
 fi
 
 dnl check for gcc -Werror=implicit-function-declaration
-saved_GF_CFLAGS=$GF_CFLAGS
-GF_CFLAGS="-Werror=implicit-function-declaration"
+saved_CFLAGS=$CFLAGS
+CFLAGS="-Werror=implicit-function-declaration"
 AC_MSG_CHECKING([whether $CC accepts -Werror=implicit-function-declaration])
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [cc_werror_implicit=yes], [cc_werror_implicit=no])
 echo $cc_werror_implicit
 if test "x$cc_werror_implicit" = "xno"; then
-    GF_CFLAGS="$saved_GF_CFLAGS"
+    CFLAGS="$saved_CFLAGS"
 else
-    GF_CFLAGS="$saved_GF_CFLAGS $GF_CFLAGS"
+    CFLAGS="$saved_CFLAGS $CFLAGS"
+    GF_CFLAGS="$GF_CFLAGS $CFLAGS"
 fi
 
 dnl clang is mostly GCC-compatible, but its version is much lower,
@@ -1242,6 +1251,9 @@ AC_SUBST(UNITTEST_LDFLAGS)
 AC_SUBST(CFLAGS)
 # end enable debug section
 
+dnl libglusterfs.so uses math functions
+GF_LDADD="${GF_LDADD} ${MATH_LIB}"
+
 AC_SUBST(GF_HOST_OS)
 AC_SUBST(GF_CFLAGS)
 AC_SUBST(GF_LDFLAGS)