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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 arithmetic |
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> |
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> What it gives without this flag and Is there a particular reason for using |
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> this one ? |
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I'm having trouble following. I'm using: |
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CFLAGS="-march=native -O2 -pipe" |
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Should I try with different flags? |
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- Grant |
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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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>> >> /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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>> >> /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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>> >> /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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