[Openexr-devel] unresolved symbols in (shared) libs

[Rex Dieter]

For details:
http://bugzilla.redhat.com/bugzilla/165729

In short, with OpenEXR-1.2.2, both libIlmImf.so and libImath.so contain
undefined symbols (See appended details).

Attached patch does:
1.  adds dependant libs to fix unresolved symbols
2.  adds -no-undefined -Wl,--no-undefined to <LIB>_la_LDFLAGS
(though I'm not very certain how portable the latter modification is).

One of the resolved symbols is from zlib, so you can also drop/omit -lz
from the pkgconfig file OpenEXR.pc as well.

-- Rex


$ldd -r /usr/lib/libIlmImf.so
undefined symbol: uncompress    (/usr/lib/libIlmImf.so)
undefined symbol: _ZN3Iex13throwErrnoExcERKSs   (/usr/lib/libIlmImf.so)
undefined symbol: _ZN3Iex7BaseExcD2Ev   (/usr/lib/libIlmImf.so)
undefined symbol:
_ZN3Iex7BaseExc6assignERSt18basic_stringstreamIcSt11char_traitsIcESaIcEE

(/usr/lib/libIlmImf.so)
undefined symbol:
_ZN3Iex7BaseExcC2ERSt18basic_stringstreamIcSt11char_traitsIcESaIcEE
(/usr/lib/libIlmImf.so)
undefined symbol: _ZN3Iex7BaseExcC2EPKc (/usr/lib/libIlmImf.so)
undefined symbol: _ZN4half7convertEi    (/usr/lib/libIlmImf.so)
undefined symbol: _ZN3Iex7BaseExcC1EPKc (/usr/lib/libIlmImf.so)
undefined symbol: compress      (/usr/lib/libIlmImf.so)
undefined symbol: _ZN3Iex7BaseExcD1Ev   (/usr/lib/libIlmImf.so)
undefined symbol: _ZTIN3Iex7BaseExcE    (/usr/lib/libIlmImf.so)
undefined symbol: _ZN4half5_eLutE       (/usr/lib/libIlmImf.so)
undefined symbol: _ZN4half8_toFloatE    (/usr/lib/libIlmImf.so)
undefined symbol: _ZNK3Iex7BaseExc4whatEv       (/usr/lib/libIlmImf.so)

$ldd -r /usr/lib/libImath.so
...
undefined symbol: _ZN3Iex7BaseExcD2Ev   (/usr/lib/libImath.so)
undefined symbol: _ZN3Iex7BaseExcC2EPKc (/usr/lib/libImath.so)
undefined symbol: _ZTIN3Iex7BaseExcE    (/usr/lib/libImath.so)
undefined symbol: _ZNK3Iex7BaseExc4whatEv       (/usr/lib/libImath.so)

--- OpenEXR-1.2.2/Half/Makefile.am.165729       2004-02-05 23:22:01.000000000 
-0600
+++ OpenEXR-1.2.2/Half/Makefile.am      2006-02-09 14:22:21.000000000 -0600
@@ -4,7 +4,7 @@
 
 libHalf_la_SOURCES = half.cpp half.h halfFunction.h halfLimits.h
 
-libHalf_la_LDFLAGS = -version-info @LIBTOOL_VERSION@
+libHalf_la_LDFLAGS = -version-info @LIBTOOL_VERSION@ -no-undefined 
-Wl,--no-undefined
 
 libHalfincludedir = $(includedir)/OpenEXR
 
--- OpenEXR-1.2.2/IlmImf/Makefile.am.165729     2004-12-16 20:01:57.000000000 
-0600
+++ OpenEXR-1.2.2/IlmImf/Makefile.am    2006-02-09 14:37:09.000000000 -0600
@@ -54,7 +54,7 @@
                       ImfPxr24Compressor.cpp ImfPxr24Compressor.h \
                       ImfTestFile.cpp ImfTestFile.h
 
-libIlmImf_la_LDFLAGS = -version-info @LIBTOOL_VERSION@
+libIlmImf_la_LDFLAGS = -version-info @LIBTOOL_VERSION@ ../Half/libHalf.la 
../Iex/libIex.la -lz -no-undefined -Wl,--no-undefined
 
 libIlmImfincludedir = $(includedir)/OpenEXR
 
--- OpenEXR-1.2.2/Imath/Makefile.am.165729      2005-03-07 22:21:53.000000000 
-0600
+++ OpenEXR-1.2.2/Imath/Makefile.am     2006-02-09 14:12:17.000000000 -0600
@@ -15,7 +15,7 @@
                      ImathFrame.h ImathPlatform.h \
                      ImathBox.cpp ImathRandom.cpp
 
-libImath_la_LDFLAGS = -version-info @LIBTOOL_VERSION@
+libImath_la_LDFLAGS = -version-info @LIBTOOL_VERSION@ ../Iex/libIex.la 
-no-undefined -Wl,--no-undefined
 
 libImathincludedir = $(includedir)/OpenEXR
 
--- OpenEXR-1.2.2/Iex/Makefile.am.165729        2006-02-09 14:13:11.000000000 
-0600
+++ OpenEXR-1.2.2/Iex/Makefile.am       2006-02-09 14:13:24.000000000 -0600
@@ -6,7 +6,7 @@
                    IexErrnoExc.h Iex.h IexMacros.h IexMathExc.h \
                    IexThrowErrnoExc.h
 
-libIex_la_LDFLAGS = -version-info @LIBTOOL_VERSION@
+libIex_la_LDFLAGS = -version-info @LIBTOOL_VERSION@ -no-undefined 
-Wl,--no-undefined
 
 libIexincludedir = $(includedir)/OpenEXR