Обсуждение: Clang support
Hi,
is clang supported for compiling Postgres? I found some websites with information that some people compiled Postgres succesfully, but I got plenty of errors even with running ./configure. So I'm wondering if it's my fault, however gcc works properly.
thanks,
Szymon
Szymon Guz <mabewlun@gmail.com> wrote: > is clang supported for compiling Postgres? I found some websites > with information that some people compiled Postgres succesfully, > but I got plenty of errors even with running ./configure. So I'm > wondering if it's my fault, however gcc works properly. I am able to build with this version of clang: Ubuntu clang version 3.4-1~exp1 (trunk) (based on LLVM 3.4) Target: x86_64-pc-linux-gnu Thread model: posix All I do is `export CC=clang` before running ./configure and make. I was getting three benign warnings which didn't show up for gcc, and recently committed changes to quiet those. -- Kevin Grittner EDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
On 19 November 2013 22:54, Kevin Grittner <kgrittn@ymail.com> wrote:
I am able to build with this version of clang:Szymon Guz <mabewlun@gmail.com> wrote:
> is clang supported for compiling Postgres? I found some websites
> with information that some people compiled Postgres succesfully,
> but I got plenty of errors even with running ./configure. So I'm
> wondering if it's my fault, however gcc works properly.
Ubuntu clang version 3.4-1~exp1 (trunk) (based on LLVM 3.4)
Target: x86_64-pc-linux-gnu
Thread model: posix
All I do is `export CC=clang` before running ./configure and make.
I was getting three benign warnings which didn't show up for gcc,
and recently committed changes to quiet those.
Hi Kevin,
thanks for the answer.
I still get about twenty errors like:
checking zlib.h usability... no
checking zlib.h presence... yes
configure: WARNING: zlib.h: present but cannot be compiled
configure: WARNING: zlib.h: check for missing prerequisite headers?
configure: WARNING: zlib.h: see the Autoconf documentation
configure: WARNING: zlib.h: section "Present But Cannot Be Compiled"
configure: WARNING: zlib.h: proceeding with the preprocessor's result
configure: WARNING: zlib.h: in the future, the compiler will take precedence
configure: WARNING: ## ---------------------------------------- ##
configure: WARNING: ## Report this to pgsql-bugs@postgresql.org ##
configure: WARNING: ## ---------------------------------------- ##
But it seems that I'm using older clang:
Debian clang version 3.2-7ubuntu1 (tags/RELEASE_32/final) (based on LLVM 3.2)
Target: x86_64-pc-linux-gnu
Thread model: posix
So maybe that's the problem, I will update clang and try once again.
thanks,
Szymon
On 19 November 2013 23:02, Szymon Guz <mabewlun@gmail.com> wrote:
On 19 November 2013 22:54, Kevin Grittner <kgrittn@ymail.com> wrote:I am able to build with this version of clang:Szymon Guz <mabewlun@gmail.com> wrote:
> is clang supported for compiling Postgres? I found some websites
> with information that some people compiled Postgres succesfully,
> but I got plenty of errors even with running ./configure. So I'm
> wondering if it's my fault, however gcc works properly.
Ubuntu clang version 3.4-1~exp1 (trunk) (based on LLVM 3.4)
Target: x86_64-pc-linux-gnu
Thread model: posix
All I do is `export CC=clang` before running ./configure and make.
I was getting three benign warnings which didn't show up for gcc,
and recently committed changes to quiet those.Hi Kevin,thanks for the answer.I still get about twenty errors like:checking zlib.h usability... nochecking zlib.h presence... yesconfigure: WARNING: zlib.h: present but cannot be compiledconfigure: WARNING: zlib.h: check for missing prerequisite headers?configure: WARNING: zlib.h: see the Autoconf documentationconfigure: WARNING: zlib.h: section "Present But Cannot Be Compiled"configure: WARNING: zlib.h: proceeding with the preprocessor's resultconfigure: WARNING: zlib.h: in the future, the compiler will take precedenceconfigure: WARNING: ## ---------------------------------------- ##configure: WARNING: ## Report this to pgsql-bugs@postgresql.org ##configure: WARNING: ## ---------------------------------------- ##But it seems that I'm using older clang:Debian clang version 3.2-7ubuntu1 (tags/RELEASE_32/final) (based on LLVM 3.2)Target: x86_64-pc-linux-gnuThread model: posixSo maybe that's the problem, I will update clang and try once again.
Yep, that's the problem. After updating to clang 3.4, there were no errors in configuring and compilation runs properly so far.
thanks,
Szymon