magic/utils/Makefile.in

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#
# rcsid $Header: /usr/cvsroot/magic-8.0/utils/Makefile,v 1.2 2008/12/04 16:21:44 tim Exp $
#
MODULE = utils
# Provided by configure: the module's source dir + the build top.
# defs.mak sees `srcdir` already set and skips its own srcdir derivation.
srcdir = @srcdir@
VPATH = @srcdir@
MAGICDIR = @top_builddir@
LIB_SRCS = LIBdbio.c LIBmain.c LIBtextio.c
build: isolate build-info defines into utils/buildinfo.c (ccache-friendly) MAGIC_VERSION / MAGIC_REVISION / MAGIC_COMMIT / MAGIC_BUILDDATE were on the global DFLAGS, so every object's compile command line carried them. Because the command line is part of ccache/sccache's hash key and MAGIC_BUILDDATE changes every second, that meant a cache miss on every unit on every build; it also smeared the baked-in date/commit across "whenever each file last recompiled". Move the four values into a single translation unit: * utils/magic_buildinfo.h -- extern MagicVersion/MagicRevision/MagicCommit/ MagicCompileTime (MagicCommit is new; the other three moved here from utils/magic.h, which now includes this header). * utils/buildinfo.c -- the ONLY unit compiled with the version defines (target-specific `buildinfo.o: DFLAGS += ${DFLAGS_MAGICVERSION}` in utils/Makefile.in); it defines the four globals. ${DFLAGS_MAGICVERSION} is removed from the global DFLAGS/DFLAGS_NOSTUB. Consumers updated to read the runtime symbol instead of the compile-time macro: * magicTop.c / tclmagic.c no longer define the globals (the MAGIC_WRAPPER duplicate-symbol guard is gone -- buildinfo.o owns them for every variant, including WASM, which links both mains). * Tcl_PkgProvide/PkgRequire in router/ext2spice/lef/ext2sim/plot/tclmagic now pass MagicVersion. * extflat: EFVersion (a static-initialized copy of MAGIC_VERSION) is dropped; EFread.c compares the .ext version against MagicVersion directly -- the same value ExtCell.c already *writes* into .ext files, so read and write are now consistent. Verified: only buildinfo.o carries -DMAGIC_* (hash/DBio/windCmdSZ carry none); Tcl (375 files) and --without-tcl builds rc=0, version/commit/date embedded in tclmagic.so, magicTop.o no longer defines MagicVersion; in-tree source clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-23 15:55:20 +02:00
SRCS = args.c buildinfo.c child.c dqueue.c finddisp.c flock.c flsbuf.c fraction.c \
geometry.c getrect.c hash.c heap.c ihash.c list.c lookup.c \
lookupany.c lookupfull.c macros.c main.c malloc.c match.c \
maxrect.c netlist.c niceabort.c parser.c path.c pathvisit.c \
port.c printstuff.c signals.c stack.c strdup.c runstats.c set.c \
show.c tech.c touchtypes.c undo.c
include ${MAGICDIR}/defs.mak
# The following required to pass XLIB to the macros.c routines.
DFLAGS += ${GR_DFLAGS}
CFLAGS += ${GR_CFLAGS}
include ${MAGICSRC}/rules.mak
build: isolate build-info defines into utils/buildinfo.c (ccache-friendly) MAGIC_VERSION / MAGIC_REVISION / MAGIC_COMMIT / MAGIC_BUILDDATE were on the global DFLAGS, so every object's compile command line carried them. Because the command line is part of ccache/sccache's hash key and MAGIC_BUILDDATE changes every second, that meant a cache miss on every unit on every build; it also smeared the baked-in date/commit across "whenever each file last recompiled". Move the four values into a single translation unit: * utils/magic_buildinfo.h -- extern MagicVersion/MagicRevision/MagicCommit/ MagicCompileTime (MagicCommit is new; the other three moved here from utils/magic.h, which now includes this header). * utils/buildinfo.c -- the ONLY unit compiled with the version defines (target-specific `buildinfo.o: DFLAGS += ${DFLAGS_MAGICVERSION}` in utils/Makefile.in); it defines the four globals. ${DFLAGS_MAGICVERSION} is removed from the global DFLAGS/DFLAGS_NOSTUB. Consumers updated to read the runtime symbol instead of the compile-time macro: * magicTop.c / tclmagic.c no longer define the globals (the MAGIC_WRAPPER duplicate-symbol guard is gone -- buildinfo.o owns them for every variant, including WASM, which links both mains). * Tcl_PkgProvide/PkgRequire in router/ext2spice/lef/ext2sim/plot/tclmagic now pass MagicVersion. * extflat: EFVersion (a static-initialized copy of MAGIC_VERSION) is dropped; EFread.c compares the .ext version against MagicVersion directly -- the same value ExtCell.c already *writes* into .ext files, so read and write are now consistent. Verified: only buildinfo.o carries -DMAGIC_* (hash/DBio/windCmdSZ carry none); Tcl (375 files) and --without-tcl builds rc=0, version/commit/date embedded in tclmagic.so, magicTop.o no longer defines MagicVersion; in-tree source clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-23 15:55:20 +02:00
# buildinfo.c is the ONLY unit that consumes the version defines; they are no
# longer on the global DFLAGS (that kept the ever-changing MAGIC_BUILDDATE off
# every other compile command line, so ccache/sccache keys stay stable). Apply
# them just here, target-specifically.
buildinfo.o: DFLAGS += ${DFLAGS_MAGICVERSION}