Fontconfig never seems to return condensed versions of Nimbus Sans L, even when
explictly asking for the width.

$ fc-list :family='Nimbus Sans L' family style slant width
Nimbus Sans L:style=Regular Italic:slant=100
Nimbus Sans L:style=Bold:slant=0
Nimbus Sans L:style=Regular:slant=0
Nimbus Sans L:style=Bold Condensed:slant=0:width=75
Nimbus Sans L:style=Bold Italic:slant=100
Nimbus Sans L:style=Regular Condensed Italic:slant=100:width=75
Nimbus Sans L:style=Regular Condensed:slant=0:width=75
Nimbus Sans L:style=Bold Condensed Italic:slant=100:width=75

fontconfig clearly sees Nimbus Sans L Regular Condensed has width=75. But when I
run the attached program with FC_DEBUG=1, the Condensed versioned is not match,
just the regular one is. Here's the output:

FC_DEBUG=1
Match Pattern 15 of 16
        autohint: FcFalse(s)
        dpi: 75(f)(s)
        family: "Nimbus Sans L"(s) "Luxi Sans"(w) "Bitstream Vera Sans"(w)
"Verdana"(w) "Nimbus Sans L"(w) "Arial"(w) "Helvetica"(w) "Nachlieli"(w) "Kochi
Gothic"(w) "ZYSong18030"(w) "AR PL SungtiL GB"(w) "AR PL Mingti2L Big5"(w)
"Baekmuk Gulim"(w) "SimSun"(w) "sans-serif"(w)
        fontversion: 2147483647(i)(s)
        globaladvance: FcTrue(s)
        hinting: FcTrue(s)
        hintstyle: 3(i)(s)
        lang: "en-US"(s)
        pixelsize: 12.5(f)(s)
        scale: 1(f)(s)
        size: 12(f)(s)
        slant: 0(i)(s)
        verticallayout: FcFalse(s)
        weight: 80(i)(s)
        width: 75(i)(s)
 
Best score 0 0 0 100 4 0 0 0 0 0 0 0 0 0 2.14748e+11Pattern 12 of 12
        charset: set(s)
        family: "Nimbus Sans L"(s)
        file: "/usr/share/fonts/default/Type1/n019003l.pfb"(s)
        fontversion: 0(i)(s)
        foundry: "urw"(s)
        index: 0(i)(s)
        lang:
aa|ab|af|ast|ava|ay|ba|be|bg|bi|br|bs|bua|ca|ce|ch|chm|co|cs|cv|da|de|en|eo|es|et|eu|fi|fj|fo|fr|fur|fy|gd|gl|gv|ho|hr|hu|ia|id|ie|ik|io|is|it|kaa|ki|kk|kl|ku|kum|kv|ky|la|lb|lez|lt|lv|mg|mh|mk|mt|nb|nl|nn|no|ny|oc|om|os|pl|pt|rm|ru|sah|se|sel|sh|sk|sl|sma|smj|smn|so|sq|sr|sv|sw|tg|tk|tn|tr|ts|tt|tyv|uk|uz|vo|vot|wa|wen|wo|xh|yap|zu(s)
        outline: FcTrue(s)
        scalable: FcTrue(s)
        slant: 0(i)(s)
        style: "Regular"(s)
        weight: 80(i)(s)