Checking if your kit is complete... Looks good Writing Makefile for libcal Writing Makefile for UNIX::Cal cp Cal.pm blib/lib/UNIX/Cal.pm gcc -c -fno-common -DPERL_DARWIN -no-cpp-precomp -arch ppc -arch i386 -nostdinc -B/Developer/SDKs/MacOSX10.4u.sdk/usr/include/gcc -B/Developer/SDKs/MacOSX10.4u.sdk/usr/lib/gcc -isystem/Developer/SDKs/MacOSX10.4u.sdk/usr/include -F/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks -mmacosx-version-min=10.3 -DPRIVLIB_LAST_IN_INC -fno-strict-aliasing -pipe -O3 -DVERSION=\"\" -DXS_VERSION=\"\" "-I/Users/cpanrun/build/5.10.0/lib/CORE" cal.c cal.c:58:36: error: /usr/include/_G_config.h: No such file or directory cal.c:82:25: error: localeinfo.h: No such file or directory cal.c: In function 'onLoad': cal.c:193: error: '_time_info' undeclared (first use in this function) cal.c:193: error: (Each undeclared identifier is reported only once cal.c:193: error: for each function it appears in.) cal.c: In function 'headers_init': cal.c:249: error: '_time_info' undeclared (first use in this function) cal.c:58:36: error: /usr/include/_G_config.h: No such file or directory cal.c:82:25: error: localeinfo.h: No such file or directory cal.c: In function 'onLoad': cal.c:193: error: '_time_info' undeclared (first use in this function) cal.c:193: error: (Each undeclared identifier is reported only once cal.c:193: error: for each function it appears in.) cal.c: In function 'headers_init': cal.c:249: error: '_time_info' undeclared (first use in this function) lipo: can't open input file: /var/tmp//cc0XirNH.out (No such file or directory) make[1]: *** [cal.o] Error 1 make: *** [subdirs] Error 2