On 12/05/2012 11:10 PM, Stephane Eranian wrote:
> On Wed, Dec 5, 2012 at 12:43 AM, Maynard Johnson <mayna...@us.ibm.com> wrote:
>> Fix installation to honor PREFIX and LIBDIR
>>
>> This patch changes the behavior of 'make install' so
>> that a user can pass PREFIX to have the libpfm4 files
>> installed somewhere other than the standard /usr/local
>> directory.
>>
>> This patch also allows for a user to pass LIBDIR to
>> specify a non-standard install directory for the
>> libpfm library files. The standard library install
>> directory is <install-dir>/lib, but on some architectures
>> (including x86_64 and ppc64), 64-bit libraries are
>> typically installed into a "lib64" subdirectory.
>>
>> This patch also removes the invocation of ldconfig from
>> the lib/Makefile install target, since that results in
>> and error when a non-root user is trying to install.
>>
>> The README was updated to document the three changes
>> made in this patch.
>>
>> Signed-off-by: Maynard Johnson <mayna...@us.ibm.com>
>> ---
>> README | 14 ++++++++++++++
>> config.mk | 8 ++++++--
>> lib/Makefile | 1 -
>> 3 files changed, 20 insertions(+), 3 deletions(-)
>>
>> diff --git a/README b/README
>> index 70bb052..cf2fcc3 100644
>> --- a/README
>> +++ b/README
>> @@ -104,6 +104,20 @@ INSTALLATION
>> - type make
>> - type make install
>>
>> + - The default installation location is /usr/local. You can specify
>> + a diffierent install location as follows:
oops! typo --^
>> + $ make PREFIX=<install-dir> install
>> + Depending on your install location, you may need to run the
>> 'ldconfig'
>> + command or use LD_LIBRARY_PATH when you build and run tools that
>> + link to the libpfm4 library.
>> +
>> + - By default, libpfm library files are installed in
>> <install-dir>/lib.
>> + If 'make' builds 64-bit libraries on your system, and your target
>> + architecture expects 64-bit libraries to be located in a library
>> + named "lib64", then you should use the LIBDIR variable when
>> installing,
>> + as follows:
>> + $ make LIBDIR=<install-dir>/lib64 install
>> +
>> - To compile and install the Python bindings, you need to go to the
>> python sub-directory and type make. Python may not be
>> systematically
>> built.
>> diff --git a/config.mk b/config.mk
>> index 9e5504c..1a38d87 100644
>> --- a/config.mk
>> +++ b/config.mk
>> @@ -101,8 +101,12 @@ AGE=0
>> #
>> # Where should things (lib, headers, man) go in the end.
>> #
>> -PREFIX=/usr/local
>> -LIBDIR=$(PREFIX)/lib
>> +ifeq (${PREFIX},)
>> + PREFIX=/usr/local
>> +endif
> What's the point of the ifeq compared to leaving
> PREFIX=/usr/local? The user can always override from cmdline: make
> PREFIX=/tmp/foo
Yeah, you're right. Dumb mistake. I got confused at first when trying various
options to install into a location other than /usr/local. In particular,
installing on ppc64 was problematic. For example, the following install
attempt failed:
--------------------------------
$ make BITMODE=64 PREFIX=/home/mpj/mylibpfm install
installing in
make[1]: Entering directory `/home/mpj/temp/libpfm-4.3.0/lib'
building: libpfm.a libpfm.so.4.3.0
mkdir -p /lib64
install -m 644 libpfm.a /lib64
install: cannot create regular file `/lib64/libpfm.a': Permission denied
make[1]: *** [install] Error 1
make[1]: Leaving directory `/home/mpj/temp/libpfm-4.3.0/lib'
make: *** [install] Error 2
--------------------------------
In fact, my patch #2 of this 2 patch series resolved that issue, but I somehow
misled myself to thinking I also needed the ifeq tests for PREFIX and LIBDIR.
So, please ignore those two changes. Do you think the updates to the README
are helpful? I know they would have been for me. ;-)
And what's your opinion on removing the LDCONFIG invocation below? As I said
in my patch description, running ldconfig will fail when you try to install
libpfm as a non-root user.
Thanks.
-Maynard
>
>> +ifeq (${LIBDIR},)
>> + LIBDIR=$(PREFIX)/lib
>> +endif
>
> What's wrong with: make LIBDIR=/tmp/foo/lib64 PREFIX=/tmp/foo?
>
>> INCDIR=$(PREFIX)/include
>> MANDIR=$(PREFIX)/share/man
>> DOCDIR=$(PREFIX)/share/doc/libpfm-$(VERSION).$(REVISION).$(AGE)
>> diff --git a/lib/Makefile b/lib/Makefile
>> index d2f00a9..1df6894 100644
>> --- a/lib/Makefile
>> +++ b/lib/Makefile
>> @@ -281,7 +281,6 @@ ifeq ($(CONFIG_PFMLIB_SHARED),y)
>> $(INSTALL) $(SLIBPFM) $(DESTDIR)$(LIBDIR)
>> cd $(DESTDIR)$(LIBDIR); $(LN) $(SLIBPFM) $(VLIBPFM)
>> cd $(DESTDIR)$(LIBDIR); $(LN) $(SLIBPFM) libpfm.$(SOLIBEXT)
>> - $(LDCONFIG)
>> endif
>>
>> tags:
>> --
>> 1.7.1
>>
>>
>>
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