-v Print (on standard error output) the commands executed to run the stages of compilation. Also print the version number of the compiler driver program and of the preprocessor and the compiler proper. ------------------------------------------------------------------------------------------------------------------ I just copied 3 lines of GCC manual in the above. What is the compiler driver program? I have Linux, Fedora 12 and after executing the following command: gcc -o my.o -v my.c I got the following output on the screen. Which message is the version of the preprocessor? Which message is the version of the compiler proper? Which message is the version of the compiler driver program? ------------------------------------------------------------------------------------------------------------------ Using built-in specs. Target: i686-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --enable-plugin --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic --with-arch=i686 --build=i686-redhat-linux Thread model: posix gcc version 4.4.2 20091222 (Red Hat 4.4.2-20) (GCC) COLLECT_GCC_OPTIONS='-o' 'my.o' '-v' '-mtune=generic' '-march=i686' /usr/libexec/gcc/i686-redhat-linux/4.4.2/cc1 -quiet -v my.c -quiet -dumpbase my.c -mtune=generic -march=i686 -auxbase my -version -o /tmp/cc6TePcE.s ignoring nonexistent directory "/usr/lib/gcc/i686-redhat-linux/4.4.2/include-fixed" ignoring nonexistent directory "/usr/lib/gcc/i686-redhat-linux/4.4.2/../../../../i686-redhat-linux/include" #include "..." search starts here: #include <...> search starts here: /usr/local/include /usr/lib/gcc/i686-redhat-linux/4.4.2/include /usr/include End of search list. GNU C (GCC) version 4.4.2 20091222 (Red Hat 4.4.2-20) (i686-redhat-linux) compiled by GNU C version 4.4.2 20091222 (Red Hat 4.4.2-20), GMP version 4.3.1, MPFR version 2.4.1. GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: ce871bdaf8715137a79dafbeccd13c96 COLLECT_GCC_OPTIONS='-o' 'my.o' '-v' '-mtune=generic' '-march=i686' as -V -Qy -o /tmp/ccQBskTq.o /tmp/cc6TePcE.s GNU assembler version 2.19.51.0.14 (i686-redhat-linux) using BFD version version 2.19.51.0.14-34.fc12 20090722 COMPILER_PATH=/usr/libexec/gcc/i686-redhat-linux/4.4.2/:/usr/libexec/gcc/i686-redhat-linux/4.4.2/:/usr/libexec/gcc/i686-redhat-linux/:/usr/lib/gcc/i686-redhat-linux/4.4.2/:/usr/lib/gcc/i686-redhat-linux/:/usr/libexec/gcc/i686-redhat-linux/4.4.2/:/usr/libexec/gcc/i686-redhat-linux/:/usr/lib/gcc/i686-redhat-linux/4.4.2/:/usr/lib/gcc/i686-redhat-linux/ LIBRARY_PATH=/usr/lib/gcc/i686-redhat-linux/4.4.2/:/usr/lib/gcc/i686-redhat-linux/4.4.2/:/usr/lib/gcc/i686-redhat-linux/4.4.2/../../../:/lib/:/usr/lib/ COLLECT_GCC_OPTIONS='-o' 'my.o' '-v' '-mtune=generic' '-march=i686' /usr/libexec/gcc/i686-redhat-linux/4.4.2/collect2 --eh-frame-hdr --build-id -m elf_i386 --hash-style=gnu -dynamic-linker /lib/ld-linux.so.2 -o my.o /usr/lib/gcc/i686-redhat-linux/4.4.2/../../../crt1.o /usr/lib/gcc/i686-redhat-linux/4.4.2/../../../crti.o /usr/lib/gcc/i686-redhat-linux/4.4.2/crtbegin.o -L/usr/lib/gcc/i686-redhat-linux/4.4.2 -L/usr/lib/gcc/i686-redhat-linux/4.4.2 -L/usr/lib/gcc/i686-redhat-linux/4.4.2/../../.. /tmp/ccQBskTq.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/gcc/i686-redhat-linux/4.4.2/crtend.o /usr/lib/gcc/i686-redhat-linux/4.4.2/../../../crtn.o ------------------------------------------------------------------------------------------------------------------
