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I'using CFLAGS="-march=core2 -O2 -pipe -msse4.1" |
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Firefox builds with success for me. gcc is 4.5.3 for me. It's strange. |
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I had a similar problem but it had a bad kernel configuration. When I have |
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this problem it's gcc receive SIGSEV signal. |
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I don't think that you have the same problem like me. |
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I test in a virtual machine and firefox compile with success: CFLAGS are |
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"-march=native -pipe -O2" |
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|
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I've not really idea for your problem :/ |
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|
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On Mon, Feb 6, 2012 at 6:06 PM, Grant <emailgrant@×××××.com> wrote: |
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|
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> > At first glance firefox uses the arithmetic pointer and Wno-pointer-arith |
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> > lifts warnings or errors when used. |
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> > This is what gcc says : error: pointer of type 'void *' used in |
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> arithmetic |
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> > |
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> > What it gives without this flag and Is there a particular reason for |
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> using |
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> > this one ? |
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> |
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> I'm having trouble following. I'm using: |
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> |
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> CFLAGS="-march=native -O2 -pipe" |
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> |
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> Should I try with different flags? |
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> |
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> - Grant |
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> |
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> |
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> >> >> Does anyone have any ideas on this? I just completed an emerge -e |
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> >> >> world so I don't think anything needs to be re-emerged. Everything |
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> >> >> compiles fine except for gcc-4.5.3-r1 (I'm on gcc-4.3.4) and |
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> >> >> firefox-9.0: |
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> >> >> |
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> >> >> |
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> >> >> |
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> /var/tmp/portage/www-client/firefox-9.0/work/mozilla-release/js/src/jsgcchunk.cpp: |
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> >> >> In function 'void* MapAlignedPages(size_t, size_t)': |
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> >> >> |
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> >> >> |
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> /var/tmp/portage/www-client/firefox-9.0/work/mozilla-release/js/src/jsgcchunk.cpp:243: |
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> >> >> error: pointer of type 'void *' used in arithmetic |
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> >> >> |
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> >> >> |
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> /var/tmp/portage/www-client/firefox-9.0/work/mozilla-release/js/src/jsgcchunk.cpp:243: |
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> >> >> error: pointer of type 'void *' used in arithmetic |
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> >> > |
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> >> > That looks like a change in how the compiler treats bad code, or the |
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> >> > introduction of bad code in an updated version of Firefox. The |
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> >> > compiler can't sanely do pointer arithmetic without knowing the |
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> >> > pointer type. Looks like the version you're compiling with throws an |
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> >> > error on that. |
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> >> > |
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> >> > Are using anything like -Werror and/or -Wall in your CFLAGS? |
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> >> > |
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> >> > |
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> >> > |
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> >> > |
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> >> |
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> >> Yes, enabling --Wno-pointer-arith should help. |
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> >> |
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> >> Regards, |
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> >> Florian Philipp |
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> |
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> |
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