Hi. I am writing some code in C that I would like to link into R.
My Makevars file is:
PKG_CPPFLAGS=-I/usr/local/include
PKG_LIBS=-L/usr/local/lib -lgsl
PKG_CFLAGS = -Wall -O0 -g -p -pg
The source file is core.c,. and I am compiling using R CMD SHLIB
core.c The output is
gcc -arch x86_64 -O3 -g -p -std=gnu99 -I/Library/Frameworks/
R.framework/Resources/include -I/Library/Frameworks/R.framework/
Resources/include/x86_64 -I/usr/local/include -I/usr/local/include -
Wall -O0 -g -p -pg -fPIC -g -O2 -c core.c -o core.o
gcc -arch x86_64 -O3 -g -p -std=gnu99 -dynamiclib -Wl,-
headerpad_max_install_names -undefined dynamic_lookup -single_module -
multiply_defined suppress -L/usr/local/lib -o core.so core.o -L/usr/
local/lib -lgsl -F/Library/Frameworks/R.framework/.. -framework R -
Wl,-framework -Wl,CoreFoundation
I am running R 2.7.1 on a Mac Pro (Intel-based) with OS X 10.5.5.
My problem is that, for debugging purposes, I would like to turn off
compiler optimization (so gdb stops telling me that values are
temporarily unavailable due to optimizations). I thought I was doing
that by putting the -O0 flag in PKG_CFLAGS in the Makevars file. But
from the output, it looks like there is still some optimization going
on. I would also like to avoid writing a Make file from scratch, if
at all possible.
I looked through the documentation and archives, and was unable to
find a solution to this. Can someone offer some assistance?
Thanks,
Michael
-------------------------------------------
Michael Braun
Homer A. Burnell Career Development Professor, and
Assistant Professor of Management Science (Marketing Group)
MIT Sloan School of Management
One Amherst St., E40-169
Cambridge, MA 02142
[EMAIL PROTECTED]
617-253-3436
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