Version 4.x of GCC (GNU Compiler Collection). It's the de facto standard C compiler on Linux and supports many other languages and platforms as well.
Version 4.0.0 was released on 2005-04-20. Version 4.9.4 was released on 2016-08-03.
See also:
Questions tagged [gcc4]
184 questions
2
votes
2 answers
2
votes
1 answer
how to hide local symbol for linux static library
I'm going to ship a to static library to a customer.
To maximize the privacy of the library I have restricted symbols for the static library using the technique provided by @ypsu Symbol hiding in static libraries built with Xcode
However, the above…
prgbenz
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2
votes
0 answers
GCC 4.5, boost and throw_error_already_set
Using Python 2.2.3, Boost 1.46 and this trivial extension module:
#include
#include
using namespace boost::python ;
using namespace boost;
class PyTest
{
public:
PyTest();
};
PyTest::PyTest()
{
…
fraca7
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2
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0 answers
Clarification required on gcc option -mcmodel=medium
While compiling one of our dependent tool, a long list relocation error is showing up while linking:
SomeLibrary.a(SomeObject.o)(.text._bla_bla_bla): error: relocation overflow
collect2: error: ld returned 1 exit status
cook: command g++: exit…
Foobar-naut
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- 11
2
votes
1 answer
Puzzling introduction of temporary in `* const&` on older C++ compilers
When building on a platform with an older C++ compiler, I noticed unexpected behavior with code that worked fine elsewhere. I'm not sure whether this indicates a bug in older compilers, or some change in the standard, but I have been explicitly…
Neil Steiner
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2
votes
0 answers
GCC -O2 with -march / -ftree-vectorize
I am trying out several compiler switches against a program that performs sobel kernel convolution on two images( 2000Hx3000W and 6800Hx8500W ). There are some observations that I am not able to interprete, following are the data - compiler flags…
Sayan
- 2,662
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2
votes
3 answers
g++, doubles, optimization and a big WTF
bug in my gcc? bug in my code? both?
http://files.minthos.com/code/speedtest_doubles_wtf.cpp
Somehow, it manages to "optimize" a function that results in the array of doubles being zeroed out into taking 2.6 seconds on my q6600, instead of the 33 ms…
Minthos
- 900
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- 13
2
votes
1 answer
How to build a cross compile NetBSD toolchain using NetBSD
I have a NetBSD VM that I created using qemu, and I am trying to compile a simple Hello World.c program with the cross compiled toolchain that I built using the build.sh script that comes with the NetBSD source. However, I can not get the program…
ipatch
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2
votes
1 answer
How to use gcc 4.5?
http://gcc.gnu.org/install/binaries.html
This page has the binaries. Which one would work for Fedora?
Moeb
- 10,527
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2
votes
1 answer
install gcc 4.9 under suse10, "checking whether to enable maintainer-specific portions of Makefiles... no"
I install gcc 4.9 by the following step
wget ftp://mirrors.kernel.org/gnu/gcc/gcc-4.9.0/gcc-4.9.0.tar.gz
tar -zxvf gcc-4.9.0.tar.gz
cd gcc-4.9.0
./contrib/download_prerequisites
cd ..
mkdir gcc-build-4.9.0
cd gcc-build-4.9.0
../gcc-4.9.0/configure…
Sleepwom
- 227
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2
votes
2 answers
Why gcc4 warn and how to avoid it
I have a function declared as:
void event_add_card (EventAddr addr, EventType type, unsigned char card);
and union
typedef union EventData
{
float money; /**< money info */
unsigned char card; /**< new card…
vitaly.v.ch
- 2,485
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- 36
2
votes
1 answer
lpm rd,Z always translates to lpm rd,Z+ on inline assembly in gcc-avr
This is a follow up question to this.
I'm writing code for an __AVR_HAVE_LPMX__ processor (avr25) using
GNU C (WinAVR 20100110) version 4.3.3 (avr) / compiled by GNU C
version 3.4.5 (mingw-vista special r3), GMP version 4.2.3, MPFR
version…
Thomas
- 595
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- 15
2
votes
1 answer
Cannot install python pillow due to gcc-4.2
I have tried so many things to get this going. I have been through as many of the numerous threads on problems with gcc-4.2 but it's still not working. Does anyone have any sage advice to nip this one in the bud?
I'm on Snow Leopard OSX…
KindOfGuy
- 3,081
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2
votes
1 answer
Switching the default Xcode compiler to "apple-gcc42"? (especially for perl Javascript::V8)
Starting points:
using Macports for all packages on OS x but perl (e.g. have installed the v8 Macports package)
for perl - using perlbrew
Javascript::V8 has a known bug - it didn't compiles with the newest Xcode compiler
the bugreport mentioning…
clt60
- 62,119
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2
votes
1 answer
Boost Serialization of a Tree?
I have a tree class that I need to serialize. The code:
#include
#include
#include
#include
#include…
Richard Żak
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