Is is possible to put something at the top of the C source file, like
// GCC_OPTIONS=-g,-Wall
that will add those options automatically to gcc every time you compile this file?
+1
A:
No. Some compiler options have #define equivalents, but not those. This belongs in your make file (or equivalent). With GNU Make:
CFLAGS += -g -Wall
Matthew Flaschen
2010-09-17 00:28:03
@Downvoter, what part of this answer is wrong?
Matthew Flaschen
2010-09-17 05:28:11
`-Wall` has an in source equivalent.
Matt Joiner
2010-09-17 12:28:51
@Matt, what is it? Your answer doesn't give one, and `#pragma GCC diagnostic warning "-Wall"` definitely doesn't work in GCC 4.4.
Matthew Flaschen
2010-09-17 12:49:21
+5
A:
Yes it is, at least for some flags. You can push and pop diagnostic settings like this:
#pragma GCC diagnostic error "-pedantic"
#pragma GCC diagnostic warning "-Wall"
This is also possible for optimization levels on a per-function level:
#pragma GCC optimize ("string"...)
See these other questions for more information:
Matt Joiner
2010-09-17 04:28:28
Neither of these are equivalent to the options he's asking about.
Matthew Flaschen
2010-09-17 12:51:22