I'm new to the terminal and trying to install jpeg-6b on my ibook running osx.3.9 and I tried the ./configure -enable-shared and got the following.
seth-tylers-Computer:~/Desktop/jpeg-6b.1 sethtyler$ ./configure -enable-shared checking for gcc... gcc checking whether the C compiler (gcc ) works... yes checking whether the C compiler (gcc ) is a cross-compiler... no checking whether we are using GNU C... yes checking how to run the C preprocessor... gcc -E checking for function prototypes... yes checking for stddef.h... yes checking for stdlib.h... yes checking for string.h... yes checking for size_t... yes checking for type unsigned char... yes checking for type unsigned short... yes checking for type void... yes checking for working const... yes checking for
inline... __inline__ checking for broken incomplete types... ok checking for short external names... ok checking to see if char is signed... yes checking to see if right shift is signed... yes checking to see if fopen accepts b spec... yes checking for a BSD compatible install... /usr/bin/install -c checking for ranlib... ranlib checking host system type... ltconfig: cannot guess host type; you must specify one Try `ltconfig --help' for more information. checking libjpeg version number... 62 creating ./config.status creating Makefile creating jconfig.h jconfig.h is unchanged seth-tylers-Computer:~/Desktop/jpeg-6b.1 sethtyler$ make ./libtool --mode=compile gcc -O2 -I. -c ./jcapimin.c make: ./libtool: Command not found make: *** [jcapimin.lo] Error 127 seth-tylers-Computer:~/Desktop/jpeg-6b.1 sethtyler$ make test ./libtool --mode=compile gcc -O2 -I. -c ./cjpeg.c make: ./libtool: Command not
found make: *** [cjpeg.lo] Error 127 seth-tylers-Computer:~/Desktop/jpeg-6b.1 sethtyler$