search for: have_png

Dear R devel list, Good morning; I'm with the Sage (http://www.sagemath.org) project. (Some of you might have seen my talk on this at last summer's useR conference). We have some rudimentary support for using R graphics in various cases, which has proved useful to many of our users who want to go back and forth between R and other capabilities within Sage. Unfortunately, the way we

...y thinking. So first try goes to r-devel... I find the following comment in X11_Open () (src/unix/X11/devX11.c): /* if we have to bail out with "error", then must free(dd) and free(xd) */ A couple lines down, there is: if (!strncmp(dsp, "png::", 5)) { FILE *fp; #ifndef HAVE_PNG error("No png support in this version of R"); #endif if (!(fp = R_fopen(R_ExpandFileName(dsp+5), "w"))) error("could not open PNG file `%s'", dsp+6); ... So what does the comment imply? If error jumps out to the toplevel without giving X11DeviceDriver...

...e reported libpng as "not found" although a recent version exists. Further looking into this issue told me, that the test failed because the test from R.m4 AC_CHECK_LIB(png, png_create_write_struct, [ BITMAP_LIBS="${BITMAP_LIBS} -lpng -lz" AC_DEFINE(HAVE_PNG) ], , ${LIBS}) ], AC_MSG_RESULT([no])) ]) did fail: gcc.exe -o conftest.exe -g -m486 -Zmt -Ig:/include -I/xfree86/include -Zmt -Zcrtdll -Zsysv-signals conftest.c -lpng -lsocket -lreadline -ldl -lncurses -lm -lcExt g:\lib/png.a(pngwrite.o): Undefined symbol _deflateEnd referenced...

Hi, I'm using R since Version 0.99 on a SGI Indigo 2 with Irix 6.5. I could compile all Versions of R until 1.1.0. When I try to compile Version 1.1.0 or 1.1.1 I get an error in the directory /R-1.1.1/src/unix/X11. Trying to compile the file rbitmap.c in this directory with the gcc compiler command gcc -I. -I../../../src/include -I../../../src/include -I../../../src/include/R_ext

Full_Name: Je Cade Version: R-2.2.1 OS: RedHat 9 Submission from: (NULL) (129.49.108.173) I followed the instructions. tar -xvf, configure, then make. I get these error messages at the end of make and with make check. ================================================================== ================================================================== In file included from rbitmap.c:45: