Sylvain Leroux schrieb:
Hi Georg-Johann,
And thanks for your answer. Some comments inline:
On 07/18/2012 09:35 PM, Georg-Johann Lay wrote:
If you also downloaded the sources to /tmp/gcc-4.7.1 don't install
the compiler to that location.
gcc source, build and install are three different directories.
You tried without the program suffix?
If you configure without program-suffix and -prefix, the default name of
the compiler will ne avr-gcc and also an avr-gcc-4.7.1 will be installed.
Just to make it clear, I was not able to find any combination of program
suffix/prefix that leads to /all/ my binaries being installed as
'avr-XXXX-4.7.1'...
I made some further tests:
(1) When I configure without program-suffix and -prefix, I indeed got
gcc installed as 'avr-gcc-4.7.1' -- but all other binaries lack the
'-4.7.1' suffix (including g++):
sh$ ../gcc-${VERSION}/configure --prefix=/tmp/gcc-${VERSION} \
--target=avr --enable-languages=c,c++
sh$ make -j9 && make install
sh$ ls /tmp/gcc-4.7.1/bin/
avr-c++ avr-g++ avr-gcc-4.7.1 avr-gcc-nm avr-gcov
avr-cpp avr-gcc avr-gcc-ar avr-gcc-ranlib
The ar, nm and ranlib prefixes look odd.
These tools are part of binutils and configured/installed with
binutils.
The gcc prefix/suffix has no effect on them, at least if you
don't build binutils in-tree.
(2) When I only add the '-4.7.1' suffix, gcc is still installed as
'avr-gcc-4.7.1' and all other binaries have the correct suffix -- but no
longer their prefix:
sh$ ../gcc-${VERSION}/configure --prefix=/tmp/gcc-${VERSION} \
--target=avr --enable-languages=c,c++ \
--program-suffix=-4.7.1
sh$ make -j9 && make install
sh$ ls /tmp/gcc-4.7.1/bin/
avr-gcc-4.7.1 cpp-4.7.1 gcc-4.7.1 gcc-nm-4.7.1 gcov-4.7.1
c++-4.7.1 g++-4.7.1 gcc-ar-4.7.1 gcc-ranlib-4.7.1
(3) When I only add the 'avr-' prefix things are going just like in (1)
(without -prefix and -suffix): gcc is installed as 'avr-gcc-4.7.1' and
all other binaries only have the 'avr-' prefix:
sh$ ../gcc-${VERSION}/configure --prefix=/tmp/gcc-${VERSION} \
--target=avr --enable-languages=c,c++ \
--program-prefix=avr-
sh$ make -j9 && make install
sh$ ls /tmp/gcc-4.7.1/bin/
avr-c++ avr-g++ avr-gcc-4.7.1 avr-gcc-nm avr-gcov
avr-cpp avr-gcc avr-gcc-ar avr-gcc-ranlib
(4) When I both configure with prefix 'avr-' and suffix '-4.7.1', I got
all my binaries installed with the correct prefix and suffix -- except
that gcc is /missing/ !
sh$ ../gcc-${VERSION}/configure --prefix=/tmp/gcc-${VERSION} \
--target=avr --enable-languages=c,c++ \
--program-prefix=avr- \
--program-suffix=-4.7.1
sh$ make -j9 && make install
sh$ ls /tmp/gcc-4.7.1/bin/
avr-c++-4.7.1 avr-g++-4.7.1 avr-gcc-nm-4.7.1 avr-gcov-4.7.1
avr-cpp-4.7.1 avr-gcc-ar-4.7.1 avr-gcc-ranlib-4.7.1
(5) When I use a different suffix and no prefix, gcc still is installed
as ''avr-gcc-4.7.1' whereas the other binaries are installed with the
requested suffix:
sh$ ../gcc-${VERSION}/configure --prefix=/tmp/gcc-${VERSION} \
--target=avr --enable-languages=c,c++ \
--program-suffix=-custom
sh$ make -j9 && make install
sh$ ls /tmp/gcc-4.7.1/bin/
avr-gcc-4.7.1 cpp-custom gcc-custom gcc-ranlib-custom g++-custom
c++-custom gcc-ar-custom gcc-nm-custom gcov-custom
It appears that for some reason the installation of gcc does not follow
the same path as for the other binaries.
- Sylvain
If you think it's a bug you can open a problem report.
You can post your patch to gcc-patches@ and discuss it there, and
maybe it's a good idea to also CC one of the build machinery maintainers
as listed in MAINTAINERS.
Johann
