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defs.mak.in: replace backtick with $(shell ...) 

Previously the variable resolution was passed to compiler command line
when ideally this only needs to be resolved once per build and the
entrie build uses the same value.

Compiler command line is computed at least once per file (plus Depends
pass), so this is forking at least 5 extra times during the build.

This improves things somewhat so resolution is performed less.

This may have the effect of making the build appear faster when
ccache is working.  As the command line options maybe seen as a
constant.
This commit is contained in:
Darryl L. Miles 2024-10-04 20:07:03 +01:00 committed by R. Timothy Edwards
parent 0dccf5826d
commit 271aef82bd
1 changed files with 3 additions and 3 deletions
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6
scripts/defs.mak.in
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@ -75,9 +75,9 @@ LIB_SPECS_NOSTUB = @LIB_SPECS_NOSTUB@
LIB_SPECS_GRNULL = @LIB_SPECS_GRNULL@
WISH_EXE = @WISH_EXE@
TCL_LIB_DIR = @TCL_LIB_DIR@
MAGIC_VERSION = `cat ../VERSION | cut -d. -f1-2`
MAGIC_REVISION = `cat ../VERSION | cut -d. -f3`
MAGIC_COMMIT = `git rev-parse HEAD`
MAGIC_VERSION = $(shell cat ${MAGICDIR}/VERSION | cut -d. -f1-2)
MAGIC_REVISION = $(shell cat ${MAGICDIR}/VERSION | cut -d. -f3)
MAGIC_COMMIT = $(shell git rev-parse HEAD)
CC = @CC@
CPP = @CPP@