From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.devel Subject: Re: Q: What is default architecture for code produced by native compiler? 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:273012 Archived-At: > Btw, -O3 is not recommended, as it frequently produces a slower Emacs. Where do we say that? INSTALL has Here's an example of a 'configure' invocation, assuming a Bourne-like shell such as Bash, which uses these variables: ./configure \ CPPFLAGS='-I/foo/myinclude' LDFLAGS='-L/bar/mylib' \ CFLAGS='-O3' LIBS='-lfoo -lbar' (this is all one shell command). This tells 'configure' to instruct the preprocessor to look in the '/foo/myinclude' directory for header files (in addition to the standard directories), instruct the linker to look in '/bar/mylib' for libraries, pass the -O3 optimization switch to the compiler, and link against libfoo and libbar libraries in addition to the standard ones. martin