Dave Korn wrote on Friday, March 27, 2009 11:46 AM: > Charles Wilson wrote: >> Thrall, Bryan wrote: >>> I recently installed 1.7 (C:\cygwin_1.7) alongside 1.5 (C:\cygwin) on my >>> workstation, then reconfigured and rebuilt my application (vital), which >>> worked just fine under 1.5 but doesn't under 1.7. >> >>> "Unable to find jpeg_CreateDecompress in cygwin1.dll". >> ^^^^^^^^^^^ >> >>> and cygjpeg-62.dll is executable and exports jpeg_CreateDecompress >>> (according to the Depends tool, which also says vital imports that >>> symbol by name), so I'm at a loss to explain why that symbol isn't being >>> found. Perhaps it is a red herring? >> >> Did you, by chance, compile with gcc-4, and have -lm on your link >> command? Try either compiling with gcc-3, or remove -lm. > > Or -lpthread. Yep, this is almost certainly the broken import tables > problem again. > > cheers, > DaveK
Yes, -lm, no -lpthread, but gcc 3.4.4: $ gcc --version gcc (GCC) 3.4.4 (cygming special, gdc 0.12, using dmd 0.125) Copyright (C) 2004 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. thr...@pc1163-8413-xp ~/clouddev/v9win/util/host $ cygcheck -cd gcc-core Cygwin Package Information Package Version gcc-core 3.4.4-999 $ make vital.exe gcc -Wall -g -O2 -march=pentium4 -mfpmath=sse -o vital.exe -Wl,--large-address-aware <bunch of .o and .a files> -lm -ltiff -ljpeg -lddraw -lwinmm -lglu32 -lopengl32 -lgdi32 -L/usr/local/lib -ldwarf -L/usr/local/libelf -lelf -lz -L/usr/lib -lxml2 -lz -liconv -lm Here's the build for the .o that actually references jpeg_CreateDecompress (in case it matters): gcc -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"visual\" -DVERSION=\"8.6\ alpha\" -DHAVE_LIBDWARF=1 -DHAVE_GEOTIFF=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_PTHREAD=1 -DSCRAMNET=1 -DWPCAP=1 -DHAVE_DIGUY=1 -D_POSIX_C_SOURCE=199506 -DV9=1 -DEMULATION=1 -DOpenGL=1 -DVPP=1 -I. -I../../../visual/vital/loader -I../../../visual/include -I/usr/include/opengl -Wall -g -O2 -march=pentium4 -mfpmath=sse -c ../../../visual/vital/loader/decomp.c -- Bryan Thrall FlightSafety International bryan.thr...@flightsafety.com -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
