Hi, While running configure script for Cairo 1.8.6 on AIX, I got the below error. configure:12762: checking how to run the C preprocessor configure:12878: result: /usr/vac/bin/xlc_r -E configure:12907: /usr/vac/bin/xlc_r -E conftest.c "conftest.c", line 19.9: 1506-213 (S) Macro name PACKAGE_VERSION cannot be redefined. "conftest.c", line 19.9: 1506-358 (I) "PACKAGE_VERSION" is defined on line 4 of conftest.c. "conftest.c", line 20.9: 1506-213 (S) Macro name PACKAGE_STRING cannot be redefined. "conftest.c", line 20.9: 1506-358 (I) "PACKAGE_STRING" is defined on line 5 of conftest.c. "conftest.c", line 21.9: 1506-213 (S) Macro name PACKAGE_NAME cannot be redefined. "conftest.c", line 21.9: 1506-358 (I) "PACKAGE_NAME" is defined on line 2 of conftest.c. "conftest.c", line 22.9: 1506-213 (S) Macro name PACKAGE_TARNAME cannot be redefined. "conftest.c", line 22.9: 1506-358 (I) "PACKAGE_TARNAME" is defined on line 3 of conftest.c. configure:12913: $? = 1 configure: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "cairo" | #define PACKAGE_TARNAME "cairo" | #define PACKAGE_VERSION "1.8.6" | #define PACKAGE_STRING "cairo 1.8.6" | #define PACKAGE_BUGREPORT "<a href="http://bugs.freedesktop.org/enter_bug.cgi?product=cairo">http://bugs.freedesktop.org/enter_bug.cgi?product=cairo</a>" | #define STDC_HEADERS 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 | #define HAVE_DLFCN_H 1 | #define LT_OBJDIR ".libs/" | #define PACKAGE_VERSION USE_cairo_version_OR_cairo_version_string_INSTEAD | #define PACKAGE_STRING USE_cairo_version_OR_cairo_version_string_INSTEAD | #define PACKAGE_NAME USE_cairo_INSTEAD | #define PACKAGE_TARNAME USE_cairo_INSTEAD | /* end confdefs.h. */ | #ifdef __STDC__ | # include <limits.h> | #else | # include <assert.h> | #endif | Syntax error To eliminate the above error I had made changes in the 2 files. Can someone advise if these changes are appropriate ? 1. ./configure Removed the below lines from the configure script. cat >>confdefs.h <<\_ACEOF #define PACKAGE_VERSION USE_cairo_version_OR_cairo_version_string_INSTEAD _ACEOF cat >>confdefs.h <<\_ACEOF #define PACKAGE_STRING USE_cairo_version_OR_cairo_version_string_INSTEAD _ACEOF cat >>confdefs.h <<\_ACEOF #define PACKAGE_NAME USE_cairo_INSTEAD _ACEOF cat >>confdefs.h <<\_ACEOF #define PACKAGE_TARNAME USE_cairo_INSTEAD _ACEOF 2. ./build/configure.ac.version Removed the below lines. dnl Disable autoconf's version macros. We try hard to not rebuild the entire dnl library just because version changed. The PACKAGE_VERSION* stuff in dnl config.h is negating all the effort. AC_DEFINE(PACKAGE_VERSION, [USE_cairo_version_OR_cairo_version_string_INSTEAD]) AC_DEFINE(PACKAGE_STRING, [USE_cairo_version_OR_cairo_version_string_INSTEAD]) AC_DEFINE(PACKAGE_NAME, [USE_cairo_INSTEAD]) AC_DEFINE(PACKAGE_TARNAME, [USE_cairo_INSTEAD]) Regards, Shailendra