I don't know whether this is a bug or not ... I'm on:
$ uname -a HP-UX omztdv1 B.11.23 U ia64 2505142627 unlimited-user license $ libtool --version ltmain.sh (GNU libtool) 1.5.23b (1.1220.2.437 2007/02/17 09:08:45) $ automake --version automake (GNU automake) 1.10 $ autoconf --version autoconf (GNU Autoconf) 2.61 I'm getting this output when running configure: checking for unistd.h... yes checking dlfcn.h usability... yes checking dlfcn.h presence... no configure: WARNING: dlfcn.h: accepted by the compiler, rejected by the preprocessor! configure: WARNING: dlfcn.h: proceeding with the compiler's result checking for dlfcn.h... yes checking how to run the C++ preprocessor... aCC +DD64 -Wl,+k -E In the corresponding config.log is this: configure:6055: checking for unistd.h configure:6076: aCC +DD64 -Wl,+k -c -g conftest.cpp >&5 configure:6082: $? = 0 configure:6098: result: yes configure:6125: checking dlfcn.h usability configure:6142: aCC +DD64 -Wl,+k -c -g conftest.cpp >&5 configure:6148: $? = 0 configure:6162: result: yes configure:6166: checking dlfcn.h presence configure:6181: conftest.cpp ../configure[6182]: conftest.cpp: not found. configure:6187: $? = 127 configure: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "impact-transport" | #define PACKAGE_TARNAME "impact-transport" | #define PACKAGE_VERSION "2007.2.38" | #define PACKAGE_STRING "impact-transport 2007.2.38" | #define PACKAGE_BUGREPORT "[EMAIL PROTECTED]" | #define PACKAGE "impact-transport" | #define VERSION "2007.2.38" | #define YYTEXT_POINTER 1 | #define HAVE_SYS_TYPES_H 1 | #define HAVE_SYS_STAT_H 1 | #define HAVE_STDLIB_H 1 | #define HAVE_STRING_H 1 | #define HAVE_MEMORY_H 1 | #define HAVE_STRINGS_H 1 | #define HAVE_INTTYPES_H 1 | #define HAVE_STDINT_H 1 | #define HAVE_UNISTD_H 1 | /* end confdefs.h. */ | #include <dlfcn.h> configure:6201: result: no configure:6207: WARNING: dlfcn.h: accepted by the compiler, rejected by the preprocessor! configure:6209: WARNING: dlfcn.h: proceeding with the compiler's result configure:6234: checking for dlfcn.h configure:6242: result: yes configure:6265: checking how to run the C++ preprocessor configure:6301: aCC +DD64 -Wl,+k -E conftest.cpp I assume this was brought in from using libtool: # _LT_AC_CHECK_DLFCN # ------------------ AC_DEFUN([_LT_AC_CHECK_DLFCN], [AC_CHECK_HEADERS(dlfcn.h)dnl ])# _LT_AC_CHECK_DLFCN My configure.ac includes: AC_PROG_LIBTOOL _______________________________________________ Bug-libtool mailing list Bug-libtool@gnu.org http://lists.gnu.org/mailman/listinfo/bug-libtool