In a ./configure script I am working on
I make use of the idiom: AC_RUN_IFELSE( [ some code ], [ success ], [
failure ] )
The problem is, the CFLAGS and LDFLAGS at that point contain:
CFLAGS="-I$includedir"
And LDFLAGS="-L$libdir -Wl,-rpath,$libdir"
Which - is correct
however, when the AC_RUN_IFELSE compiles and links the [some code], the
variables $includedir and$libdir are expanded before hand. Literally,
the compiler (gcc in this case) sees -I$includedir, rather then
-I/the/expanded/text, likewise for LDFLAGS
As I understand - this is caused by the "gnu coding standards" - as it
applies to *MAKEFILES*, so that somebody can do this: 'make
include_dir=/foo/bar' if they want to.
However, in this case, I'm still inside "configure" and need to evaluate
this. My only solution right now is to do something like this (LDFLAGS
not shown)
CFLAGS_SAVE=$CFLAGS
_CFLAGS=`eval echo $CFLAGS`
AC_RUN_IFELSE( [ some code ], [ success ], [ failure ] )
CFLAGS=$CFLAGS_SAVE
Is there a better way to do this?
-Duane.
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