Fix: tracepoint float nowrite

[lttng-ust.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 294d457524b153895200ed285f34d08df56810da..79c33ff395896101319c4961e5d975f60c747d7e 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -39,6 +39,31 @@ version_description="New type of beer, 100% from Quebec, flavored with sapin bea
 AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name])
 AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description"], [UST version description])
 
+AC_PROG_GREP
+# libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.
+AC_ARG_ENABLE(libtool-linkdep-fixup,
+       AS_HELP_STRING([--disable-libtool-linkdep-fixup],
+                       [disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]),
+       libtool_fixup=$enableval,
+       libtool_fixup=yes)
+
+AS_IF([test "x$libtool_fixup" = "xyes"],
+           [
+           libtool_m4="$srcdir/config/libtool.m4"
+           libtool_flag_pattern=".*link_all_deplibs\s*,\s*\$1\s*)"
+           AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4])
+           libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s*=\s*no" $libtool_m4)
+           AS_IF([test $libtool_flag_pattern_count -ne 0],
+           [
+                 AC_MSG_RESULT([$libtool_flag_pattern_count])
+                 AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown])
+                 sed -i "s/\($libtool_flag_pattern\)\s*=\s*no/\1=unknown/g" $libtool_m4
+                 ],
+                 [
+                 AC_MSG_RESULT([none])
+                 ])
+           ])
+
 # Checks for programs.
 AC_PROG_CC
 AC_PROG_CXX
@@ -110,19 +135,17 @@ AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf]
 
 CFLAGS="-Wall $CFLAGS"
 
-# Check for texinfo, required for building the documentation
-# TODO: make this (and building the documentation) optional
-AC_CHECK_PROG([TEXINFO], [makeinfo], [yes])
-AS_IF([test "x$TEXINFO" != "xyes"],[
-       AC_MSG_ERROR([Please install the 'texinfo' program and make sure 'makeinfo' is in the PATH.])
-])
-
 # URCU
 
 # urcu - check if we just find the headers it out of the box.
 AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
 This error can also occur when the liburcu package's configure script has not been run.])])
 
+# urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
+# Part of Userspace RCU library 0.7.2 or better.
+AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
+liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
+
 AC_MSG_CHECKING([caa_likely()])
 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <urcu/compiler.h>