fix: ust comm error handling segfault

[lttng-ust.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 00da3e8c6ac78bd3985a0a2846141347c8466ffe..d4f879eb5f6f5d1664348fc728b9571a9555e3c4 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -42,7 +42,23 @@ AC_PROG_MAKE_SET
 LT_INIT
 
 ## Checks for libraries.
-AC_CHECK_LIB([dl], [dlopen])
+AC_CHECK_LIB([dl], [dlopen],
+[
+       have_libdl=yes
+],
+[
+       #libdl not found, check for dlopen in libc.
+       AC_CHECK_LIB([c], [dlopen],
+       [
+               have_libc_dl=yes
+       ],
+       [
+               AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
+       ])
+])
+AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
+AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
+
 AC_CHECK_LIB([pthread], [pthread_create])
 
 # Check for libuuid
@@ -59,7 +75,7 @@ AC_CHECK_LIB([uuid], [uuid_generate],
                have_libc_uuid=yes
        ],
        [
-               AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify its location.])
+               AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify their location.])
        ])
 ]
 )
@@ -100,7 +116,7 @@ AS_IF([test "x$TEXINFO" != "xyes"],[
 # 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 [CFLAGS]=-Idir to specify their location.
+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.])])
 
 AC_MSG_CHECKING([caa_likely()])
@@ -159,6 +175,7 @@ changequote([,])dnl
          fi
          ;;
        x86_64) LIBFORMAT="elf64-x86-64" ;;
+       amd64) LIBFORMAT="elf64-x86-64" ;;
        powerpc) LIBFORMAT="elf32-powerpc" ;;
        ppc64) LIBFORMAT="elf64-powerpc" ;;
        powerpc64) LIBFORMAT="elf64-powerpc" ;;
@@ -201,9 +218,9 @@ AS_IF([test $JAVA_JDK],[
        AS_IF([test -d $JAVA_JDK],[
                 AC_MSG_RESULT([using Java includes in $JAVA_SDK])
                 SUBDIRS=`find $JAVA_JDK/include -type d`
-               CFLAGS+=" "
-                CFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
-               CFLAGS+=" "
+               CPPFLAGS+=" "
+                CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done`
+               CPPFLAGS+=" "
         ],[
                 AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK)
         ])
@@ -246,7 +263,7 @@ AS_IF([test "x$with_sdt" = "xyes"],[
                AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
        ],[
                AC_MSG_RESULT([no])
-               AC_MSG_ERROR([The sdt.h integration was requested but the STAP_PROBEV define cannot be used. Make sure it is installed, and up to date, or use CFLAGS=-I/path/ to specify a non-standard path to sys/sdt.h])
+               AC_MSG_ERROR([The sdt.h integration was requested but the STAP_PROBEV define cannot be used. Make sure it is installed, and up to date, or use CPPFLAGS=-I/path/ to specify a non-standard path to sys/sdt.h])
        ])
 ])