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author | Andreas Baumann <abaumann@yahoo.com> | 2009-02-21 19:24:12 +0100 |
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committer | Andreas Baumann <abaumann@yahoo.com> | 2009-02-21 19:24:12 +0100 |
commit | b331893196a633abebddd1ec36d35da433326221 (patch) | |
tree | 4f2dfb6da2d8f655f520f661063f247aa9800bb9 /docs/makefiles | |
parent | 1f70e51deaab95cfcbfd114d8507830e53a1c916 (diff) | |
download | wolfbones-b331893196a633abebddd1ec36d35da433326221.tar.gz wolfbones-b331893196a633abebddd1ec36d35da433326221.tar.bz2 |
fixed for Intel CC
Diffstat (limited to 'docs/makefiles')
-rw-r--r-- | docs/makefiles/gcc_dependecies_in_subdirs.txt | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/docs/makefiles/gcc_dependecies_in_subdirs.txt b/docs/makefiles/gcc_dependecies_in_subdirs.txt new file mode 100644 index 0000000..1f1b260 --- /dev/null +++ b/docs/makefiles/gcc_dependecies_in_subdirs.txt @@ -0,0 +1,279 @@ + + #[1]Stack Overflow [2]RSS + + [3]logo homepage + [4]login | [5]about | [6]faq + ____________________________ + * [7]Questions + * [8]Tags + * [9]Users + * [10]Badges + * [11]Unanswered + + * [12]Ask Question + +[13]gcc dependency generation for a different output directory + + vote up 1 vote down + star + + I'm using gcc to generate a dependency file but my build rules put the + output into a subdirectory. Is there a way to tell gcc to put my + subdirectory prefix in the dependency file it generates for me? +gcc $(INCLUDES) -E -MM $(CFLAGS) $(SRC) >>$(DEP) + + [14]c++ [15]gcc [16]makefile [17]dependency + offensive? + asked Sep 18 at 21:46 + [18][2db54153755add15ae67c16bfba9b7e5?s=32&d=identicon&r=PG] + [19]KPexEA + 2,312●2●19 + add comment JavaScript is needed to access comments. + +4 Answers: + + [20]Oldest[21]Newest[22]Votes + vote up 1 vote down + check + + The answer is in the [23]GCC manual: use the -MT flag. + + -MT target Change the target of the rule emitted by dependency generation. + By default CPP takes the name of the main input file, deletes any + directory components and any file suffix such as `.c', and appends the + platform's usual object suffix. The result is the target. + + An -MT option will set the target to be exactly the string you specify. If + you want multiple targets, you can specify them as a single argument to + -MT, or use multiple -MT options. + + For example, -MT '$(objpfx)foo.o' might give + $(objpfx)foo.o: foo.c + + [24]link|offensive? + answered Sep 19 at 3:27 + [25][139450632a8b42b6f4564d6448e33688?s=32&d=identicon&r=PG] + [26]bk1e + 2,104●1●10 + add comment JavaScript is needed to access comments. + vote up 0 vote down + + If there is an argument to gcc to do this, I don't know what it is. We end + up piping the dependency output through sed to rewrite all occurrences of .o + as ${OBJDIR}/.o + [27]link|offensive? + answered Sep 18 at 21:52 + [28][a5274c69de87610590b2f62c2fa3ad0d?s=32&d=identicon&r=PG] + [29]Denton Gentry + 4,976●5●17 + add comment JavaScript is needed to access comments. + vote up 0 vote down + + Ok, just to make sure I've got the question right: I'm assuming you have + test.c which includes test.h, and you want to generate subdir/test.d (while + not generating subdir/test.o) where subdir/test.d contains +subdir/test.o: test.c test.h + + rather than +test.o: test.c test.h + + which is what you get right now. Is that right? + + I was not able to come up with an easy way to do exactly what you're asking + for. However, looking at + [30]http://www.gnu.org/software/gcc/news/dependencies.html, if you want to + create the .d file while you generate the .o file, you can use + + gcc $(INCLUDES) -MMD $(CFLAGS) $(SRC) -o $(SUBDIR)/$(OBJ) + + (Given SRC=test.c, SUBDIR=subdir, and OBJ=test.o) This will create both + subdir/test.o and subdir/test.d, where subdir/test.d contains the desired + output as above. Hope that helps. + [31]link|offensive? + answered Sep 18 at 22:38 + [c749fe5f20f7e2045cf312767496d0b4?s=32&d=identicon&r=PG] + Emile + add comment JavaScript is needed to access comments. + vote up 0 vote down + 1. [GNU] make gets angry if you don't place the output in the current + directory. What you really should do is run make from the build + directory, and use the VPATH make variable to locate the source code. If + you lie to a compiler, sooner or later it will take its revenge. + 2. If you insist on generating your objects and dependencies in some other + directory, you need to use the -o argument as answered by Emile. + + [32]link|offensive? + answered Sep 18 at 23:10 + [33][aea3ad606f964cb4b710951d75318d6a?s=32&d=identicon&r=PG] + [34]florin + 1,212●1●13 + add comment JavaScript is needed to access comments. + +Your Answer: + + + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + ______________________________________________________________________ + community wiki + [_] + ____________________ + OpenID Login: ________________________________________ + Get an [35]OpenID + or + Name: ______________________________ Email: (never shown) + ________________________________________ Home Page: + ________________________________________ + Post Your Answer + +Not the answer you're looking for? 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