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libgcrypt's cipher/Makefile fails to take into account gcc 4.6 -Ofast flag
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Setting "-Ofast" in the CFLAGS for configure, then trying to make libgcrypt
results in cipher/Makefile's o_flag_munging command changing "-Ofast" (a valid
gcc flag) to "-O1fast" (an invalid gcc flag), causing the build to fail.

I worked around this by changing the line to
o_flag_munging = sed -e 's/-O([2-9s]|fast)*/-O1/g'

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Done in commit d3132553 for 1.5. Needs to be fixed in master.

werner claimed this task.
werner removed projects: forwardport, In Progress.

Fixed in master.