On 07.02.2017 11:53, zyx wrote:
> On Mon, 2017-02-06 at 23:20 +0100, Sandro Mani wrote:
>> I'll narrow this down as time allows and file a GCC bug as soon as I
>> have a reduced test case (provided the narrowing down confirms my
>> miscompilation theory).
> Hi,
> I tried to reproduce this with gcc 7.0.1, but still no luck. It doesn't
> matter whether I compile PoDoFo as a static library (the default) or as
> a shared library, neither whether I use Boost or Lua or some other
> optional dependencies on or off (my podofo_config.h currently shows
> that I have all the development libraries installed and available).
>
> I use the attached code, which is the same as yours, it only avoids a
> memory leak and unused variable, thus neither gcc nor valgrind claim
> any issue. The file contain my steps (note the missing `make install`,
> the code is run out of the build tree) at the top of it.
>
> Maybe I do something wrong?
>
I can reproduce it with
$ cat test.cpp
#include <podofo/base/PdfDictionary.h>
#include <podofo/doc/PdfImage.h>
#include <podofo/doc/PdfStreamedDocument.h>
int main() {
PoDoFo::PdfStreamedDocument* document = new
PoDoFo::PdfStreamedDocument("test.pdf");
PoDoFo::PdfImage pdfImage(document);
PoDoFo::PdfDictionary& dictionary =
pdfImage.GetObject()->GetDictionary();
return 0;
}
$ cmake -DPODOFO_BUILD_SHARED=ON ..
$ make DESTDIR=$PWD/dist install
$ g++ -g -o testprog test.cpp -L$PWD/dist/usr/local/lib -lpodofo
-I$PWD/dist/usr/local/include -Wl,-rpath,$PWD/dist/usr/local/lib
$ ./testprog
terminate called after throwing an instance of 'PoDoFo::PdfError'
Aborted (core dumped)
Relevant cmake output:
Using gcc specific compiler options
-- Found ZLIB: /usr/lib64/libz.so
Found zlib headers in /usr/include, library at /usr/lib64/libz.so
-- Found PkgConfig: /usr/bin/pkg-config (found version "1.2.2")
-- Checking for module 'libcrypto'
-- Found libcrypto, version 1.1.0d
-- Found LIBCRYPTO: /usr/lib64/libcrypto.so
-- Performing Test PODOFO_HAVE_OPENSSL_1_1
-- Performing Test PODOFO_HAVE_OPENSSL_1_1 - Success
Found OpenSSL's libCrypto headers in /usr/include, library at
/usr/lib64/libcrypto.so
-- Could NOT find LIBIDN (missing: LIBIDN_LIBRARY LIBIDN_INCLUDE_DIR)
Libidn not found. AES-256 Encryption support will be disabled
-- Found LIBJPEG: /usr/lib64/libjpeg.so
Found libjpeg headers in /usr/include, library at /usr/lib64/libjpeg.so
-- Found TIFF: /usr/lib64/libtiff.so
Found libtiff headers in /usr/include, library at /usr/lib64/libtiff.so
-- Found ZLIB: /usr/lib64/libz.so (found version "1.2.11")
-- Found PNG: /usr/lib64/libpng.so (found version "1.6.28")
Found LibPng headers in /usr/include;/usr/include, library at
/usr/lib64/libpng.so;/usr/lib64/libz.so
-- Ensure you cppunit installed version is at least 1.12.0
-- Found cppunit: /usr/lib64/libcppunit.so
Found cppunit. Unit tests will be built.
-- Found OpenSSL: /usr/lib64/libssl.so
Found freetype library at /usr/lib64/libfreetype.so, headers
/usr/include/freetype2
-- Checking for module 'fontconfig'
-- Found fontconfig, version 2.12.1
-- Found Fontconfig: fontconfig;freetype
Found fontconfig headers in /usr/include, library at fontconfig;freetype
-- Could NOT find Lua50 (missing: LUA_LIBRARIES LUA_INCLUDE_DIR)
-- Could NOT find Lua (missing: LUA_LIBRARIES LUA_INCLUDE_DIR)
Lua not found - PoDoFoImpose and PoDoFoColor will be built without Lua
support
Building multithreaded version of PoDoFo.
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
Building shared PoDoFo library
Pkg-config found, creating a pkg-config file for linking against shared
library.
All this on Fedora rawhide. (I'm working on narrowing down as time allows).
Sandro
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