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Since Make version 4.4, MAKEFLAGS also contains long options and overridden variables on the command-line[1]. [1]: https://git.savannah.gnu.org/cgit/make.git/tree/NEWS?h=4.4#n67 This means that parsing by filtering out '--%' doesn't work reliably anymore, since it doesn't remove overrides: Running 'make VAR=quacks' gives 'MAKEFLAGS=" -- VAR=quacks"', and 'checkflags' would understand that flags -q, -s, ... were set. This would get transmitted below into 'QUIET_FLAGS' and 'QUESTION_FLAG', then passed to the 'genVersionHeader.pl' as '-i' and '-q'. The result would be that 'genVersionHeader.pl' would never create the version header (only check for its up-to-date status), leading to confusing errors: ../misc/epicsRelease.c:25:32: error: expected ')' before 'EPICS_VCS_VERSION' 25 | printf ( "## %s\n", "Rev. " EPICS_VCS_VERSION ); | ~ ^~~~~~~~~~~~~~~~~~ The NEWS file[1] recommends using 'firstword', but unfortunately this is not compatible with GNUMake < 3.82.
--------------------------------------------------------- EPICS Base - the central core of a control system toolkit --------------------------------------------------------- Copyright UChicago Argonne LLC, as Operator of Argonne National Laboratory. Copyright (c) 1991-2003 The Regents of the University of California, as Operator of Los Alamos National Laboratory. EPICS Base is distributed subject to a Software License Agreement found in the file LICENSE that is included with this distribution. --------------------------------------------------------- Installation and release information can be found in the various files in the documentation subdirectory. Additional information about EPICS including mailing list archives and subscription instructions, documentation and training materials, additional components, links to other websites etc. is available on the EPICS home page at https://epics.anl.gov/ $Format:%cD$ $Format:%H$ https://code.launchpad.net/epics-base