Dear all I am trying to install qtiplot in Centos 7 (qtiplot is a graph plotting software similar to Origin). I followed the same step as this mention on this. http://poolinfo.physik.hu-berlin.de/qtiplot-installer/README.html At step 8, I experience the following error. cd fitPlugins && make -f Makefile make[1]: Entering directory `/home/rahman/Downloads/qtiplot-0.9.8.9/fitPlugins' cd explin/ && make -f Makefile make[2]: Entering directory `/home/rahman/Downloads/qtiplot-0.9.8.9/fitPlugins/explin' rm -f libexplin.so.1.0.0 libexplin.so libexplin.so.1 libexplin.so.1.0 g++ -Wl,-O1 -Wl,-z,relro -shared -Wl,-soname,libexplin.so.1 -o libexplin.so.1.0.0 explin.o -L/usr/lib64 ../../3rdparty/gsl/lib/libgsl.a ../../3rdparty/gsl/lib/libgslcblas.a -L/opt/local/lib -lpthread -lQtGui -lQtCore g++: error: ../../3rdparty/gsl/lib/libgsl.a: No such file or directory g++: error: ../../3rdparty/gsl/lib/libgslcblas.a: No such file or directory make[2]: *** [../libexplin.so.1.0.0] Error 1 make[2]: Leaving directory `/home/rahman/Downloads/qtiplot-0.9.8.9/fitPlugins/explin' make[1]: *** [sub-explin-make_default] Error 2 make[1]: Leaving directory `/home/rahman/Downloads/qtiplot-0.9.8.9/fitPlugins' make: *** [sub-fitPlugins] Error 2 Please suggest me how to resolve this problem. Thank you in advanced for help Regards Rahman ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' *Md Homaidur Rahman* PhD Research Scholar Computational Biophysics Lab. Department of Biotechnology Indian Institute of Technology-Madras Chennai-600 036 *Mobile No = +91- 7845991785* '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''