From b4e437b4ee208e8a7e69f4a99904fba08d8b6045 Mon Sep 17 00:00:00 2001
From: Christophe Geuzaine <cgeuzaine@ulg.ac.be>
Date: Thu, 20 Mar 2008 18:31:17 +0000
Subject: [PATCH] *** empty log message ***
---
doc/README.occ | 63 ++++++++++++++++++++++++++++++++++++--------------
1 file changed, 46 insertions(+), 17 deletions(-)
diff --git a/doc/README.occ b/doc/README.occ
index b0248540ec..eb01f80752 100644
--- a/doc/README.occ
+++ b/doc/README.occ
@@ -1,25 +1,32 @@
-How to build OpenCascade 6.2 for Gmsh:
+How to build OpenCascade 6.2 (OCC) for Gmsh:
-- get the linux (source) distribution of occ
+- Get the linux (source) distribution of OCC and unpack it. In the
+ following <OpenCascade dir> refers to the directory where OCC is
+ installed (e.g ~/OpenCascade)
-- if you're using Cygwin/Mingw32 (Windows) define
+- If you're using Cygwin/Mingw32 (Windows) define
export CC="gcc -mno-cygwin -DWNT=1 -DWIN32 -DHAVE_NO_DLL"
export CXX="g++ -mno-cygwin -DWNT=1 -DWIN32 -DHAVE_NO_DLL"
-- with new versions of gcc, add "-ffriend-injection" to the compiler
- options (this prevents the "Standard_Transient_Type_ not declared"
- error)
+- With new versions of gcc, add "-ffriend-injection -fpermissive" to
+ the compiler options (this prevents the "Standard_Transient_Type_
+ not declared" error), i.e., define
-- go to the ros/ directory and type
+ export CXXFLAGS="${CXXFLAGS} -ffriend-injection -fpermissive"
+
+- Go to the <OpenCascade dir>/Linux/ros directory and type
./configure --prefix=/usr/local/opencascade --enable-debug=no
--enable-production=yes --enable-static=yes --enable-shared=no
--disable-dependency-tracking
-- then go to the adm/make/ directory and run
+- Then go to the <OpenCascade dir>/Linux/ros/adm/make/ directory and
+ run "make" in the following subdirectories, e.g. by running the
+ following bash script:
+ #!/bin/bash
for lib in TKernel TKMath TKAdvTools TKG2d TKG3d TKGeomBase TKBRep
TKGeomAlgo TKTopAlgo TKPrim TKBO TKHLR TKMesh TKShHealing TKBool
TKFillet TKFeat TKOffset TKXSBase TKIGES TKSTEPBase TKSTEPAttr
@@ -27,15 +34,14 @@ How to build OpenCascade 6.2 for Gmsh:
cd $lib && make; cd ..;
done
- (This is the same as doing
- make FoundationClasses
- make ModelingData
- make ModelingAlgorithms
- and part of
- make DataExchange)
+ Note that this is the same as doing "make FoundationClasses", "make
+ ModelingData", "make ModelingAlgorithms" and part of "make
+ DataExchange"
-- and finally do
+- Finally, run this other bash script in the same directory (to install
+ the libraries)
+ #!/bin/bash
for lib in TKernel TKMath TKAdvTools TKG2d TKG3d TKGeomBase TKBRep
TKGeomAlgo TKTopAlgo TKPrim TKBO TKHLR TKMesh TKShHealing TKBool
TKFillet TKFeat TKOffset TKXSBase TKIGES TKSTEPBase TKSTEPAttr
@@ -43,6 +49,29 @@ How to build OpenCascade 6.2 for Gmsh:
cd $lib && make install; cd ..;
done
- and copy config.h and inc/ to /usr/local/opencascade (This is the
- same as a doing a partial 'make install')
+ and copy config.h and the <OpenCascade dir>/Linux/ros/inc/ subdirectory
+ to /usr/local/opencascade (This is the same as a doing a partial
+ 'make install')
+
+OpenCascade is now installed and ready to be used by Gmsh. To compile
+Gmsh with OpenCascade support:
+
+- Go to the gmsh source directory
+
+- Run "./configure --enable-occ --with-occ-prefix=/usr/local/opencascade" and
+ then "make"
+
+- If you get errors like
+
+ undefined reference to `pthread_create'
+ undefined reference to `pthread_detach'
+ ...
+
+ edit the "variables" file and add "-pthread" to the OPTIM variable, e.g.:
+
+ OPTIM="-g -O2 -pthread"
+
+ and run make again
+- If compiling is successful then you are done and you can enjoy
+ importing IGES/STEP/BREP files into Gmsh!
--
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