Update of sr#110484 (group autoconf):
Severity: 4 - Important => 3 - Normal
Status: None => Invalid
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Follow-up Comment #1:
Autoconf is consistent with GNU make's implicit rules:
make: *** No targets. Stop.
COMPILE.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
COMPILE.cc = $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
Therefore I think it is actually Automake, and the expectations of
AX_CHECK_COMPILE_FLAG, that are incorrect here.
Please take this up with both the maintainers of Automake (see
https://www.gnu.org/software/automake/manual/html_node/Reporting-Bugs.html)
and the maintainers of GNU make (write to bug-m...@gnu.org). If they both
agree that the order ought to be CPPFLAGS first, and GNU make's implicit rules
are changed, then I will change Autoconf to match.
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