[Rd] aclocal.m4: R_PROG_F77_CC_COMPAT assumes executables w/o extension (PR#890)

Kurt Hornik Kurt.Hornik@ci.tuwien.ac.at
Fri, 6 Apr 2001 21:40:18 +0200

>>>>> hoffmann  writes:

> Full_Name: Thomas Hoffmann
> Version: 1.2.2 (and older)
> OS: HP-UX, OS/2
> Submission from: (NULL) (

> The test defined in AC_DEFUN([R_PROG_F77_CC_COMPAT] (aclocal.m4:342) produces
> an executable using (in line 393)

> if ${CC-cc} ${LDFLAGS} ${MAIN_LDFLAGS} -o conftest conftest.o \ ....

> This fails on systems that use an extension for executables, which can be
> used via $ac_exeext in configure files. So it should read instead

> if ${CC-cc} ${LDFLAGS} ${MAIN_LDFLAGS} -o conftest$ac_exeext
> conftest.o \ ....

Correct in theory, but is this a problem in practice?  Currently the
configure mechanism is only used on Unix, and I am not aware of a Unix
system which uses an extension for executables ...

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