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diff --git a/41/index.md b/41/index.md new file mode 100644 index 0000000..0de6cb0 --- /dev/null +++ b/41/index.md @@ -0,0 +1,199 @@ +Title: FreeBSD linker error due to undefined libiconv_open +Author: rodarima +Created: Wed, 27 Dec 2023 11:45:05 +0000 +State: closed + +``` +c++ -I/usr/local/include/libpng16 -I/usr/local/include -I/usr/local/include \ + -I/usr/local/include/freetype2 -I/usr/local/include/libpng16 -D_THREAD_SAFE -O2 \ + -pipe -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing \ + -isystem /usr/local/include -fvisibility-inlines-hidden -I/usr/local/include \ + -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_THREAD_SAFE \ + -D_REENTRANT -g -O2 -Wall -W -Wno-unused-parameter -fno-rtti \ + -fno-exceptions -o dillo dillo.o paths.o tipwin.o ui.o uicmd.o bw.o cookies.o \ + hsts.o auth.o md5.o digest.o colors.o misc.o history.o prefs.o prefsparser.o \ + keys.o url.o bitvec.o klist.o chain.o utf8.o timeout.o dialog.o web.o nav.o \ + cache.o decode.o dicache.o capi.o domain.o css.o cssparser.o styleengine.o \ + plain.o html.o form.o table.o bookmark.o dns.o gif.o jpeg.o png.o \ + imgbuf.o image.o menu.o dpiapi.o findbar.o xembed.o ../dlib/libDlib.a \ + ../dpip/libDpip.a IO/libDiof.a ../dw/libDw-widgets.a ../dw/libDw-fltk.a \ + ../dw/libDw-core.a ../lout/liblout.a -L/usr/local/lib -lpng16 -L/usr/local/lib \ + -lm -Wl,-rpath,/usr/local/lib -fstack-protector-strong -lfltk -lXrender -lXcursor \ + -lXfixes -lXext -lXft -lfontconfig -lXinerama -lpthread -lm -lX11 -lz -lX11 \ + -lcrypto -lssl + ld: error: undefined symbol: libiconv_open + >>> referenced by form.cc:1142 (../../../src/form.cc:1142) + >>> form.o:(DilloHtmlForm::buildQueryData(DilloHtmlInput*)) + >>> referenced by form.cc:1146 (../../../src/form.cc:1146) + >>> form.o:(DilloHtmlForm::buildQueryData(DilloHtmlInput*)) + + ld: error: undefined symbol: libiconv_close + >>> referenced by form.cc:1244 (../../../src/form.cc:1244) + >>> form.o:(DilloHtmlForm::buildQueryData(DilloHtmlInput*)) + + ld: error: undefined symbol: libiconv + >>> referenced by form.cc:1339 (../../../src/form.cc:1339) + >>> form.o:(DilloHtmlForm::encodeText(void*, Dstr**)) + c++: error: linker command failed with exit code 1 (use -v to see invocation) + *** Error code 1 + ``` + +This is likely caused by a the configure script first testing if iconv is provided by the libc, which it is: +``` + checking for iconv.h... yes + checking for iconv_open in -lc... yes +``` + +But then, the `-isystem /usr/local/include` gets added from `fltk-config`, causing `/usr/local/include/iconv.h` to be loaded first which is part of libiconv (instead of `/usr/include/iconv.h`). + +This header defines iconv_open() as libiconv_open() instead of the symbol iconv_open() provided by libc. Then, the linker fails as -liconv is not provided as initially it was decided to use the implementation in libc. + +--%-- +From: rodarima +Date: Wed, 27 Dec 2023 14:09:59 +0000 + +This doesn't make a lot of sense, as the form.o is compiled with a `-I/usr/include` first: +``` +2023-12-27T12:38:34.1670839Z c++ -DHAVE_CONFIG_H -I. -I.. -I.. -DDILLO_SYSCONF='"/usr/local/etc/dillo/"' -DDILLO_DOCDIR='"/usr/local/share/doc/dillo/"' -DCUR_WORKING_DIR='"/home/runner/work/dillo/dillo/src"' -I/usr/include -I/usr/local/include/libpng16 -I/usr/local/include -I/usr/local/include -I/usr/local/include/freetype2 -I/usr/local/include/libpng16 -D_THREAD_SAFE -O2 -pipe -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -isystem /usr/local/include -fvisibility-inlines-hidden -I/usr/local/include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_THREAD_SAFE -D_REENTRANT -g -O2 -Wall -W -Wno-unused-parameter -fno-rtti -fno-exceptions -MT form.o -MD -MP -MF .deps/form.Tpo -c -o form.o form.cc +``` + +Here is the `tr ' ' '\n'` version: + +``` +tr ' ' '\n' < /tmp/kk +2023-12-27T12:38:34.1670839Z +c++ +-DHAVE_CONFIG_H +-I. +-I.. + + +-I.. + +-DDILLO_SYSCONF='"/usr/local/etc/dillo/"' + +-DDILLO_DOCDIR='"/usr/local/share/doc/dillo/"' + +-DCUR_WORKING_DIR='"/home/runner/work/dillo/dillo/src"' +-I/usr/include +-I/usr/local/include/libpng16 +-I/usr/local/include +-I/usr/local/include +-I/usr/local/include/freetype2 +-I/usr/local/include/libpng16 +-D_THREAD_SAFE +-O2 +-pipe +-fstack-protector-strong +-isystem +/usr/local/include +-fno-strict-aliasing +-isystem +/usr/local/include +-fvisibility-inlines-hidden +-I/usr/local/include +-D_LARGEFILE_SOURCE +-D_LARGEFILE64_SOURCE +-D_THREAD_SAFE +-D_REENTRANT +-g +-O2 +-Wall +-W +-Wno-unused-parameter +-fno-rtti +-fno-exceptions +-MT +form.o +-MD +-MP +-MF +.deps/form.Tpo +-c +-o +form.o +form.cc +``` + +--%-- +From: rodarima +Date: Wed, 27 Dec 2023 14:23:27 +0000 + +Ah, this may be the problem, from gcc(1): + +``` + If a standard system include directory, or a directory specified + with -isystem, is also specified with -I, the -I option is ignored. + The directory is still searched but as a system directory at its + normal position in the system include chain. This is to ensure + that GCC's procedure to fix buggy system headers and the ordering + for the "#include_next" directive are not inadvertently changed. + If you really need to change the search order for system + directories, use the -nostdinc and/or -isystem options. + +``` +So I'm guessing the first `-I/usr/include/` is ignored as it is already in the system list of gcc, then the `-isystem /usr/local/include` adds it to the beginning of the search list, and that ends up with `/usr/include/local/iconv.h`. + +I can verify this by using `CXXFLAGS="-v"`, so it dumps the search path. + +--%-- +From: rodarima +Date: Wed, 27 Dec 2023 14:33:10 +0000 + +Yeah, that seems to be the case: +``` +2023-12-27T14:28:38.9303858Z c++ -DHAVE_CONFIG_H -I. -I.. -I.. -DDILLO_SYSCONF='"/usr/local/etc/dillo/"' -DDILLO_DOCDIR='"/usr/local/share/doc/dillo/"' -DCUR_WORKING_DIR='"/home/runner/work/dillo/dillo/src"' -I/usr/local/include/libpng16 -I/usr/local/include -I/usr/local/include -I/usr/local/include/freetype2 -I/usr/local/include/libpng16 -D_THREAD_SAFE -O2 -pipe -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -isystem /usr/local/include -fvisibility-inlines-hidden -I/usr/local/include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_THREAD_SAFE -D_REENTRANT -I/START -I/usr/include -v -I/END -Wall -W -Wno-unused-parameter -fno-rtti -fno-exceptions -MT form.o -MD -MP -MF .deps/form.Tpo -c -o form.o form.cc +2023-12-27T14:28:38.9336368Z FreeBSD clang version 16.0.6 (https://github.com/llvm/llvm-project.git llvmorg-16.0.6-0-g7cbf1a259152) +2023-12-27T14:28:38.9337563Z Target: x86_64-unknown-freebsd14.0 +2023-12-27T14:28:38.9338145Z Thread model: posix +2023-12-27T14:28:38.9338543Z InstalledDir: /usr/bin +2023-12-27T14:28:38.9340781Z (in-process) +2023-12-27T14:28:38.9354557Z "/usr/bin/c++" -cc1 -triple x86_64-unknown-freebsd14.0 -emit-obj -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name form.cc -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -mllvm -treat-scalable-fixed-error-as-warning -debugger-tuning=gdb -v -fcoverage-compilation-dir=/home/runner/work/dillo/dillo/src -resource-dir /usr/lib/clang/16 -dependency-file .deps/form.Tpo -MT form.o -sys-header-deps -MP -isystem /usr/local/include -isystem /usr/local/include -D HAVE_CONFIG_H -I . -I .. -I .. -D "DILLO_SYSCONF=\"/usr/local/etc/dillo/\"" -D "DILLO_DOCDIR=\"/usr/local/share/doc/dillo/\"" -D "CUR_WORKING_DIR=\"/home/runner/work/dillo/dillo/src\"" -I /usr/local/include/libpng16 -I /usr/local/include -I /usr/local/include -I /usr/local/include/freetype2 -I /usr/local/include/libpng16 -D _THREAD_SAFE -I /usr/local/include -D _LARGEFILE_SOURCE -D _LARGEFILE64_SOURCE -D _THREAD_SAFE -D _REENTRANT -I /START -I /usr/include -I /END -internal-isystem /usr/include/c++/v1 -internal-isystem /usr/lib/clang/16/include -internal-externc-isystem /usr/include -O2 -Wall -W -Wno-unused-parameter -fdeprecated-macro -fdebug-compilation-dir=/home/runner/work/dillo/dillo/src -ferror-limit 19 -fvisibility-inlines-hidden -stack-protector 2 -fno-rtti -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o form.o -x c++ form.cc +2023-12-27T14:28:38.9362257Z clang -cc1 version 16.0.6 based upon LLVM 16.0.6 default target x86_64-unknown-freebsd14.0 +2023-12-27T14:28:38.9362822Z ignoring nonexistent directory "/START" +2023-12-27T14:28:38.9363183Z ignoring nonexistent directory "/END" +2023-12-27T14:28:38.9363521Z ignoring duplicate directory ".." +2023-12-27T14:28:38.9363873Z ignoring duplicate directory "/usr/local/include" +2023-12-27T14:28:38.9364326Z ignoring duplicate directory "/usr/local/include/libpng16" +2023-12-27T14:28:38.9364776Z ignoring duplicate directory "/usr/local/include" +2023-12-27T14:28:38.9365176Z ignoring duplicate directory "/usr/local/include" +2023-12-27T14:28:38.9365733Z as it is a non-system directory that duplicates a system directory +2023-12-27T14:28:38.9366223Z ignoring duplicate directory "/usr/local/include" +2023-12-27T14:28:38.9366846Z ignoring duplicate directory "/usr/include" <--- here +2023-12-27T14:28:38.9367378Z as it is a non-system directory that duplicates a system directory <--- here +2023-12-27T14:28:38.9367828Z #include "..." search starts here: +2023-12-27T14:28:38.9368135Z #include <...> search starts here: +2023-12-27T14:28:38.9368422Z . +2023-12-27T14:28:38.9368601Z .. +2023-12-27T14:28:38.9368803Z /usr/local/include/libpng16 +2023-12-27T14:28:38.9369087Z /usr/local/include/freetype2 +2023-12-27T14:28:38.9369549Z /usr/local/include +2023-12-27T14:28:38.9369787Z /usr/include/c++/v1 +2023-12-27T14:28:38.9370032Z /usr/lib/clang/16/include +2023-12-27T14:28:38.9370287Z /usr/include +2023-12-27T14:28:38.9370498Z End of search list. +``` + +I don't see any easy solution, as including `/usr/local/include` is required for the libraries in ports, so they will always shadow `/usr/include/iconv.h`. Maybe FreeBSD folks can suggest some solution... + +--%-- +From: rodarima +Date: Wed, 27 Dec 2023 17:09:47 +0000 + +Opened ticket in FreeBSD: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275969 + +--%-- +From: idatum +Date: Sun, 05 May 2024 16:04:36 +0000 + +Seeing the same on NetBSD 10 (Aarch64): + +`/work/dillo/build/src/../../src/form.cc:1339: undefined reference to `libiconv' +/work/dillo/build/src/../../src/form.cc:1339:(.text+0x148): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `libiconv' +ld: form.o: in function `DilloHtmlForm::buildQueryData(DilloHtmlInput*)': +/work/dillo/build/src/../../src/form.cc:1244: undefined reference to `libiconv_close' +/work/dillo/build/src/../../src/form.cc:1244:(.text+0x3c7c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `libiconv_close' +ld: /work/dillo/build/src/../../src/form.cc:1142: undefined reference to `libiconv_open' +/work/dillo/build/src/../../src/form.cc:1142:(.text+0x4190): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `libiconv_open' +ld: /work/dillo/build/src/../../src/form.cc:1146: undefined reference to `libiconv_open' +/work/dillo/build/src/../../src/form.cc:1146:(.text+0x4260): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `libiconv_open'`
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