[asterisk-bugs] [JIRA] (ASTERISK-26342) [patch] Disable -march=native when cross-compiling

[abelbeck (JIRA)]

abelbeck created ASTERISK-26342:
-----------------------------------

             Summary: [patch] Disable -march=native when cross-compiling
                 Key: ASTERISK-26342
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26342
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: General
    Affects Versions: 13.11.0
         Environment: AstLinux 1.2.7 x86_64 (cross-compiled via Buildroot)
            Reporter: abelbeck


The resulting fix for issue ASTERISK-25289 did not take into account for "cross-compiling".
http://git.asterisk.org/gitweb/?p=asterisk/asterisk.git;a=commit;h=3be6fa1e4b920fe1ccec67e4a78e101354a767d9

Our project has cross-compiled Asterisk for many years, we pass CFLAGS and the resulting AST_NATIVE_ARCH was undefined, it worked.

Then with Asterisk 13.11.0 the resulting binary crashed with illegal operand at startup, shortly after reading "/etc/localtime".

After much head-scratching and hair-pulling I discovered this change where -march=native was being defined behind our back.

Adding:
{noformat}
menuselect/menuselect --disable BUILD_NATIVE menuselect.makeopts
{noformat}
solves the problem, but it would seem less fragile and better to first test for "cross-compiling" and set AST_NATIVE_ARCH=0, then proceed as per the previous fix.

Patch attached.  Works in my testing.




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