Revert "Fix: bump minimal urcu dependency to 0.11"

[lttng-tools.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index ab659691fab0886a3710088366aa24e2d67a32ea..b23833dfee78b2f41d09fdf1f759625e83439f4a 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,6 @@
+dnl SPDX-License-Identifier: GPL-2.0-only
 AC_PREREQ([2.64])
-AC_INIT([lttng-tools],[2.12.0-pre],[jeremie.galarneau@efficios.com],[],[https://lttng.org])
+AC_INIT([lttng-tools],[2.12.8],[jeremie.galarneau@efficios.com],[],[https://lttng.org])
 
 AC_CONFIG_HEADERS([include/config.h])
 AC_CONFIG_AUX_DIR([config])
@@ -14,17 +15,46 @@ AM_MAINTAINER_MODE([enable])
 # Enable silent rules if available (Introduced in AM 1.11)
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
-AC_REQUIRE_AUX_FILE([tap-driver.sh])
-
 # Checks for C compiler
 AC_USE_SYSTEM_EXTENSIONS
 AC_SYS_LARGEFILE
 AC_PROG_CC
-AC_PROG_CC_STDC
+# AC_PROG_CC_STDC was merged in AC_PROG_CC in autoconf 2.70
+m4_version_prereq([2.70], [], [AC_PROG_CC_STDC])
 AC_PROG_CXX
 RW_PROG_CXX_WORKS
 AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
 
+# Detect warning flags supported by the compiler, append them to WARN_CFLAGS.
+#
+# Pass -Werror as an extra flag during the test: this is needed to make the
+# -Wunknown-warning-option diagnostic fatal with clang.
+AX_APPEND_COMPILE_FLAGS([ dnl
+               -Wall dnl
+               dnl We currently get this warning when building with Clang:
+               dnl
+               dnl /usr/include/setjmp.h:54:12: error: declaration of built-in function '__sigsetjmp' requires the declaration of the 'jmp_buf' type, commonly provided in the header <setjmp.h>. [-Werror,-Wincomplete-setjmp-declaration]
+               dnl extern int __sigsetjmp (struct __jmp_buf_tag __env[1], int __savemask) __THROWNL;
+               dnl            ^
+               -Wno-incomplete-setjmp-declaration dnl
+               -Wdiscarded-qualifiers dnl
+               -Wmissing-declarations dnl
+               -Wmissing-prototypes dnl
+               -Wmissing-parameter-type dnl
+               -Wold-style-definition dnl
+               -Wstrict-prototypes dnl
+       ],
+       [WARN_CFLAGS],
+       [-Werror])
+
+# When given, add -Werror to WARN_CFLAGS.
+AC_ARG_ENABLE([Werror],
+       [AS_HELP_STRING([--enable-Werror], [Treat compiler warnings as errors.])]
+)
+AS_IF([test "x$enable_Werror" = "xyes"],
+       [WARN_CFLAGS="${WARN_CFLAGS} -Werror"]
+)
+
 # Checks for programs.
 AC_PROG_GREP
 AC_PROG_MAKE_SET
@@ -71,7 +101,9 @@ detection.
 AM_CONDITIONAL([HAVE_BISON], [test "x$have_bison" = "xyes"])
 
 # check for flex
-AC_PROG_LEX
+# Prior to autoconf 2.70, AC_PROG_FLEX did not take an argument. This is not a
+# problem since the argument is silently ignored by older versions.
+AC_PROG_LEX([noyywrap])
 FLEX=$LEX
 AX_PROG_FLEX_VERSION([2.5.35], [have_flex=yes])
 
@@ -153,8 +185,8 @@ AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [LTTng-Tools major version n
 AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [LTTng-Tools minor version number])
 AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [LTTng-Tools patchlevel version number])
 
-version_name="Codename TBD"
-version_description="Description TBD"
+version_name="(Ta) Meilleure"
+version_description="Ta Meilleure is a Northeast IPA beer brewed by Lagabière. Translating to \"Your best one\", this beer gives out strong aromas of passion fruit, lemon, and peaches. Tastewise, expect a lot of fruit, a creamy texture, and a smooth lingering hop bitterness."
 version_description_c=$(echo $version_description | $SED 's/"/\\"/g')
 
 AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], "")
@@ -548,7 +580,7 @@ AM_CONDITIONAL([LTTNG_TOOLS_BUILD_WITH_LIBPFM], [test "x$have_libpfm" = "xyes"])
 swig_version=2.0.0
 
 AC_ARG_ENABLE([python-bindings],
-              [AC_HELP_STRING([--enable-python-bindings],
+              [AS_HELP_STRING([--enable-python-bindings],
                               [compile Python bindings])],
               [enable_python_binding=$enableval], [enable_python_binding=no])
 
@@ -1037,9 +1069,13 @@ AM_CONDITIONAL([BUILD_LIB_SESSIOND_COMM], [test x$build_lib_sessiond_comm = xyes
 AM_CONDITIONAL([BUILD_LIB_TESTPOINT], [test x$build_lib_testpoint = xyes])
 AM_CONDITIONAL([BUILD_LIB_UST_CONSUMER], [test x$build_lib_ust_consumer = xyes])
 
-AM_CFLAGS="-Wall -fno-strict-aliasing $PTHREAD_CFLAGS"
+AM_CFLAGS="${WARN_CFLAGS} -fno-strict-aliasing $PTHREAD_CFLAGS"
 AC_SUBST(AM_CFLAGS)
 
+# This is set even though it is empty, so Makefiles can do "AM_LDFLAGS += ...".
+AM_LDFLAGS=""
+AC_SUBST(AM_LDFLAGS)
+
 # The order in which the include folders are searched is important.
 # The top_builddir should always be searched first in the event that a build
 # time generated file is included. An example of this is the "version.i" file.
@@ -1277,9 +1313,9 @@ PPRINT_PROP_BOOL([LTTng-UST Python2 agent tests], $value)
 test ! -z "$PYTHON3_AGENT" && value=1 || value=0
 PPRINT_PROP_BOOL([LTTng-UST Python3 agent tests], $value)
 
-# LTTng UST Java agent Log4j tests enabled/disabled
+# userspace-probe SDT instrumentation tests enabled/disabled
 test "x$test_sdt_uprobe" = "xyes" && value=1 || value=0
-PPRINT_PROP_BOOL([LTTng-UST SDT uprobe tests], $value)
+PPRINT_PROP_BOOL([LTTng-modules SDT uprobe tests], $value)
 
 #Python binding enabled/disabled
 test "x$enable_python_binding" = xyes && value=1 || value=0