h12w/cwrap

Wraps C libraries in Go.

cwrap's Issues

gmime library

Tried to run it on gmime library and got this:
/usr/local/include/gmime-2.6/gmime/gmime.h:26:33: error: gmime/gmime-version.h: No such file or directory

I guess some settings are wrong, but which ones?

Wrapping Fitz from MuPDF not working as expected

Hello -- firstly, thank you for your work here. I'm excited to use this package.

I'm attempting to use this project to create bindings for MuPDF's Fitz. I'm using your MuPDF example as a reference, but my code is not working. Any advice would be greatly appreciated.

Here's my directory setup. I effectively cloned MuPDF and plucked out the include/ directory:

./
|  main.go
|  include/
|  | mupdf/
|  |  | fitz.h
|  |  | memento.h
|  |  | pdf.h
|  |  | ucdn.h
|  |  | fitz/
|  |  |  | lots of fitz headers...
|  |  | helpers
|  |  |  | helpers...
|  |  | pdf/
|  |  |  | pdf headers...

My go code:

package main

import (
	. "h12.io/cwrap"
	"fmt"
)

const (
	Ldflags   = "LDFLAGS: /usr/local/lib/libmupdf.a /usr/local/lib/libmupdf-js-none.a -lm -lfreetype -ljpeg -lopenjp2 -ljbig2dec -lssl -lcrypto"
)

var (
	fitz = &Package{
		PacName: "fitz",
		PacPath: "go-fitz/",
		From: Header{
			Dir:         "include/",
			File:        "mupdf/fitz.h",
			NamePattern: `(?i:\Afz(.*))`,
			Excluded: []string{
				"fz_get_annot_type",
				"fz_open_file_w",
			},
			CgoDirectives: []string{Ldflags},
		},
		Included: []*Package{},
	}
)

func main() {
    err := fitz.Wrap()

    if err != nil {
        fmt.Println(err)
    }
}

And, the errors I'm getting. I'm at a complete loss for how to solve the first error about the "angled include." The second one is about relative imports, and I'm able to make it go away by flattening all of the fitz code into one directory. But, I don't think that's the right way to solve the issue:

./_cwrap-2668373447.h:2:10: error: 'mupdf/fitz.h' file not found with <angled> include; use "quotes" instead
#include <mupdf/fitz.h>
         ^~~~~~~~~~~~~~
         "mupdf/fitz.h"
In file included from ./_cwrap-2668373447.h:2:
./mupdf/fitz.h:30:10: fatal error: 'mupdf/fitz/version.h' file not found
#include "mupdf/fitz/version.h"
         ^~~~~~~~~~~~~~~~~~~~~~
exit status 1

Thank you in advance for your help!

Problem with wrapping gsl function which takes in a work []float

func Spearman(data1 []float64, stride1 int, data2 []float64, stride2 int, n int) (work float64, ret float64) {

_work := (*C.double)(unsafe.Pointer(&work))
_ret := C.gsl_stats_spearman(_data1, _stride1, _data2, _stride2, _n, _work)
ret = float64(_ret)
return

}

From the documentation of gsl Spearman (https://www.gnu.org/software/gsl/manual/html_node/Correlation.html) the function definition is:

double gsl_stats_spearman (const double data1[], const size_t stride1, const double data2[], const size_t stride2, const size_t n, double work[])

Additional workspace of size 2*n is required in work. What is the best thing to do here. Do I manually modify the wrapper so that I can pass in the correct size of []float in "work"?

See corresponding golang nuts thread:

https://groups.google.com/forum/#!topic/golang-nuts/vNUqbdP1tpQ