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For every FLAG1, FLAG2 it is checked whether the compiler works with the flag. If it does, the flag is added FLAGS-VARIABLE

If FLAGS-VARIABLE is not specified, the current language’s flags (e.g. CFLAGS) is used. During the check the flag is always added to the current language’s flags.

If EXTRA-FLAGS is defined, it is added to the current language’s default flags (e.g. CFLAGS) when the check is done. The check is thus made with the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to force the compiler to issue an error when a bad flag is given.

INPUT gives an alternative input source to AC_COMPILE_IFELSE.

NOTE: This macro depends on the AX_APPEND_FLAG and AX_CHECK_COMPILE_FLAG. Please keep this macro in sync with AX_APPEND_LINK_FLAGS.

Source Code

Download the latest version of ax_append_compile_flags.m4 or browse the macro’s revision history.


Copyright © 2011 Maarten Bosmans

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