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Phil Sexton wrote: |
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> Could someone expound on these 3 commands? I don't really understand |
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> the man and info pages on these. |
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> |
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> gcc -v |
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> gcc --version |
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> (I thought the previous two were the same.) |
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> cat /proc/version |
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|
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gcc -v tells you what programs are invoked by gcc. gcc being a |
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collection of compilers, this can differ quite a bit depending on |
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your configuration. |
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|
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***** |
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# gcc -v |
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Reading specs from /usr/lib/gcc/i686-pc-linux-gnu/3.4.4/specs |
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Configured with: |
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/var/tmp/portage/gcc-3.4.4-r1/work/gcc-3.4.4/configure --prefix=/usr |
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--bindir=/usr/i686-pc-linux-gnu/gcc-bin/3.4.4 |
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--includedir=/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/include |
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--datadir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.4 |
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--mandir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.4/man |
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--infodir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.4/info |
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--with-gxx-include-dir=/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/include/g++-v3 |
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--host=i686-pc-linux-gnu --build=i686-pc-linux-gnu --disable-altivec |
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--enable-nls --without-included-gettext --with-system-zlib |
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--disable-checking --disable-werror --disable-libunwind-exceptions |
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--disable-multilib --disable-libgcj --enable-languages=c,c++,f77 |
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--enable-shared --enable-threads=posix --enable-__cxa_atexit |
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--enable-clocale=gnu |
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Thread model: posix |
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gcc version 3.4.4 (Gentoo 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8) |
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***** |
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|
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gcc --version very simply tells you the version of gcc and spams you |
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about the GPL ;-) |
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|
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***** |
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# gcc --version |
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gcc (GCC) 3.4.4 (Gentoo 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8) |
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Copyright (C) 2004 Free Software Foundation, Inc. |
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This is free software; see the source for copying conditions. There |
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is NO |
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR |
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PURPOSE. |
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***** |
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|
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cat /proc/version tells you a bunch of stuff about your kernel, not |
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gcc specifically. It does, however, mention with which version of gcc |
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your kernel was compiled. |
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|
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***** |
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# cat /proc/version |
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Linux version 2.6.15-gentoo-r1 (root@dell) (gcc version 3.4.4 (Gentoo |
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3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8)) #1 SMP PREEMPT Tue Jan 24 |
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19:46:43 EST 2006 |
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***** |
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-- |
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