pgsql: Preserve intermediate .c files in coverage mode

Preserve intermediate .c files in coverage mode

The introduction of the .y -> .c pattern rule causes some .c files such
as bootparse.c to be considered intermediate files in the .y -> .c -> .o
rule chain, which make would automatically delete. But in coverage
mode, the processing tools such as genhtml need those files, so mark
them as "precious" so that make preserves them.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/4af3dda13601d859a20425e3554533fde0549056

Modified Files
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src/Makefile.global.in | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)